Michelle is two years older than her sister Nicole. 10 years ago, Michelle was twice as old as her sister. How old is Michelle now? Use guess and check to solve this problem.

Answers

Answer 1

Answer:

Michelle is 14 years old.

Step-by-step explanation:

The only logical explanation for the two being two years apart in age and Michelle being twice as old ten years ago is if Michelle was 4 years old and Nicole was 2 years old ten years ago. To verify this, we can use a System of equations.

Let:
N = Nicole's Age

M = Michelle's Age

N + 2 = M

2n-10 = M

Since both equal Michelle's age, we can make a two step equation out of it.

N + 2 = 2n - 10

2 = N - 10

12 = N

We've found Nicole's age, allowing us to plug the answer back into the variable to get Michelle's.

N + 2 = M

12 + 2 = 14

Answer 2

Answer:

n+2=m m=12+2=14

Step-by-step explanation:

M=N+2

M-10=(n-10)2

m-10=2n-20

m=2n-10

n+2=2n-10

n=2n-12

n-12=0

n=12


Related Questions

Graph two lines whose solution is (1, 4) .

Answers

The lines y = x + 3 and y = 2 · x + 2 pass through point (1, 4) on Cartesian plane.

How to graph two lines that pass through a given point on Cartesian plane

In this problem we must graph two lines that pass through point (x, y) = (1, 4). Lines can be represented by equations of following form:

y = m · x + b

Where:

x - Independent variable.y - Dependent variable.m - Slopeb - Intercept

We must choose two slope-intercept combinations to generate two different lines: (x, y) = (1, 4)

Line 1

4 = m · 1 + b

4 = m + b

m = 1

4 = 1 + b

b = 3

y = x + 3

Line 2

4 = m · 1 + b

4 = m + b

m = 2

4 = 2 + b

b = 2

y = 2 · x + 2

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Graph two lines whose solution is (1, 4) .

Si al invertir $60.000 se pierde un 8% ¿A cuánto asciende la pérdida?

Answers

Trabajando con porcentajes, concluimos que la pérdida es de $4800.

¿A cuánto asciende la pérdida?

Sabemos que la inversión inicial es de $60000, y de esta cantidad, se pierde un 8%.

Entonces la pérdida va a ser el 8% de $60000.

Podemos escribir las relaciones:

$60000 = 100%

x = 8%

Queremos resolver esto para x, tomando el cociente entre esas relaciones y resolviendo para x obtenemos:

x = $60000*(8%/100%) = $60000*0.08 = $4800

Así, concluimos que la pérdida es de $4800.

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When a cube with sides numbered 1 trough 6 is
rolled 1 time what is the probability of rolling a 4
or greater

Answers

Answer:

The probability of rolling a 4 or greater is 12

Step-by-step explanation:

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please help.
definitions: 1. definition of right triangle
2. definition of isosceles TrianglesReflexive
3. HL
4. definition of perpendicular
5. CPCTC
6. reflexive​

please help.definitions: 1. definition of right triangle2. definition of isosceles TrianglesReflexive3.

Answers

From the two column proof below, we have seen ∠BAC ≅ ∠DAC by CPCTC

How to solve two column proof problems?

The two column proof to show that ∠BAC ≅ ∠DAC is as follows:

Statement 1: ΔABD is Isosceles with base BD, AC ⊥ BD

Reason 1: Given

Statement 2: AB ≅ AD

Reason 2:  Definition of isosceles Triangles

Statement 3: ∠1 and ∠2 are right angles

Reason 3: Definition of perpendicular

Statement 4: AC ≅ AC

Reason 4: Reflexive Property

Statement 5: ΔABC and ΔADC are right triangles

Reason 5: Definition of right triangle

Statement 6: ΔABC ≅ ΔADC

Reason 6: HL Congruency

Statement 7: ∠BAC ≅ ∠DAC

Reason 7: CPCTC

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A ship is anchored off a long straight shoreline that runs north and south. From two observation points
miles apart on shore, the bearings of the ship are
and
. What is the distance from the ship to each of the observation points? Round each answer to the nearest tenth of a mile.

The distance from the north most ship to the observation is
miles.
The distance from the south most ship to the observation is
miles.

Answers

The distance from the north most ship to the observation is 2.9 miles and the distance from the south most ship to the observation is 9.9 miles.

The bearing is defined as the angle measured clockwise from the north direction. A ship is anchored off a long straight shoreline that runs north and south.

From two observation points miles apart on shore, the bearings of the ship are 52 degrees and 134 degrees respectively. To find the distance from the ship to each of the observation points, we can use trigonometry.

Let's call the distance from the north observation point to the ship x, and the distance from the south observation point to the ship y. The bearings from the north and south observation points can be drawn as follows:

[asy]


unitsize(1cm);


pair O = (0,0), N = (-2,0), S = (2,0), A = (-2,1), B = (2,-1);


draw(O--N--A,Arrow);


draw(O--S--B,Arrow);


\(label("$52^\circ$", N + 0.3*dir(52), NE);\)


\(label("$134^\circ$", S + 0.3*dir(134), SE);\)

draw(O--A--B--cycle,dashed);


\(label("$x$", (N+A)/2, W);\)


\(label("$y$", (S+B)/2, E);\)


[/asy]

We can use the tangent function to find x and y, since we have the angle and opposite side.

From the north observation point, we have:

\($$\tan(52^\circ) = \frac{x}{2}$$$$x = 2\tan(52^\circ) \approx 2.95$$\)

From the south observation point, we have:

\($$\tan(134^\circ) = \frac{y}{2}$$$$y = 2\tan(134^\circ) \approx 9.88$$\)

Therefore, the distance from the north most ship to the observation is 2.9 miles and the distance from the south most ship to the observation is 9.9 miles.

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A pre-election survey showed that two out of every three eligible voters would cast ballots in the county election. There are 390,000 eligible voters in the county. How many people are expected to vote in the election?

Answers

The number of people that nare expected to vote in the election is 260,000. people.

How to illustrate the fraction?

Simply put, a fraction is a portion of a whole. Mathematically, the number is represented as a quotient with split numerator and denominator. The numerator and denominator of a simple fraction are both integers. On the other hand, a complex fraction has a fraction in either the numerator or the denominator.

In this situation, the pre-election survey showed that two out of every three eligible voters would cast ballots in the county election and there are 390,000 eligible voters in the county.

The number of people expected to vote will be:

= Fraction of expected voters × Total number of people

= 2/3 × 390000

= 2 × 130000

= 260000

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244-33456/3456*345+13.55-2=

Answers

The order of operations (PEMDAS) states that we should perform multiplication and division before addition and subtraction. Using this order, we get:

244 - (33456 / 3456) * 345 + 13.55 - 2

= 244 - 97.02 * 345 + 13.55 - 2

= 244 - 33494.1 + 13.55 - 2

= -33238.55

Therefore, 244-33456/3456*345+13.55-2 = -33238.55.

Points B, D, and F are midpoints of the sides of triangle ACE. EC = 39 and DF = 23. Find AC. The diagram is not to scale.

Answers

Answer:

  46

Step-by-step explanation:

The midsegment DF has half the length of the side AC it is parallel to.

__

AC = 2×DF = 2×23

AC = 46

Points B, D, and F are midpoints of the sides of triangle ACE. EC = 39 and DF = 23. Find AC. The diagram

Which expression shows 35+ 15 written as a product of two factors?
7(5+2)
5(6 + 3)
5(7 + 3)
7(5+3)?

Answers

Answer:

5(7+3)

Step-by-step explanation:

Because 7+3=10 and 10x5=50. And also 35+15=50 so 50 and 50

Hey there!

35 + 15

= 50


Option A.

7(5 + 2)

= 7(5) + 7(2)

= 35 + 14

= 49

49 ≠ 50


Option B.
5(6 + 3)

= 5(6) + 5(3)

= 30 + 15

= 45

45 ≠ 50


Option C.

5(7 + 3)

= 5(7) + 5(3)

= 35 + 15

= 50

50 = 50


Option D.
7(5 + 3)

= 7(5) + 7(3)

= 35 + 21

= 56

56 ≠ 50


Therefore, the answer should be:

Option C. 5(7 + 3)

Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

Choose all angles that are congruent to ∠ 1 in the below figure.

Choose all angles that are congruent to 1 in the below figure.

Answers

Answer:

1,7,2, and 5

Step-by-step explanation:

They follow the same angle.

You buy ricotta cheese in 5 lb containers. One batch of cheese ravioli requires 0.2 ounces of ricotta cheese. How many batches can be made with one container? Round down (don't include partial batches).

Answers

Answer:

3

Step-by-step explanation:

16 oz= 1 lb

16 oz x 5lbs = 80 oz

80 oz/ 24 oz= 3.33333333

Answer=3 when rounded down

Ez points-

2.72 divided by 3

Answers

Answer:

2.72/3=0.907 (correct to three decimal places)

Step-by-step explanation:

Which of the following steps were applied to ABCD to obtain A'B'C'D'?
A. shifted 4 units left and 3 units up
B. shifted 3 units left and 3 units up
C. shifted 4 units left and 4 units up
D. shifted 3 units left and 4 units up​

Which of the following steps were applied to ABCD to obtain A'B'C'D'? A. shifted 4 units left and 3 units

Answers

Answer:

A

Step-by-step explanation:

To find the transformation, we need to take a point and the point to which it has been translated.

Let's take A and A'.

⇒ A = (2, -2)

⇒ A' = (-2, 1)

Change in x : -4 (shifted 4 units left)

Change in y : 3 (shifted 3 units up)

This means to obtain A'B'C'D' from ABCD, the graph has to be :

shifted 4 units left and 3 units up

please help for 25 points

please help for 25 points

Answers

Using translation concepts, the trigonometric graph is given by:

y = sin(x) + 1 = 1sin(1x) + 1.

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.

The parent function given in this problem is:

y = sin(x).

The dashed line is a shift up one unit of the parent function, hence the definition is:

y = sin(x) + 1 = 1sin(1x) + 1.

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Can I please get help plsss

Can I please get help plsss

Answers

Answer:

1000 ft/min

Step-by-step explanation:

Rate of change in ft per min is 1000 ft per 1 minute from reading the graph

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Divide by using synthetic division

(x^3 - 3x + 5) ÷ ( x + 2 )

Answers

Answer:

x^2-2x+1+3/x+2

Step-by-step explanation:

Set up the synthetic division using the coefficients of the numerator and the root in the denominator. Divide using the rules for synthetic division.

Use the coordinates of the labeled point to find the point-slope equation of
the line.
A. y-5=-3(x+3)
B.y-3-(x+5)
C. y + 5 = 3(x+3)
D. y + 5 = -3(x-3)
(3,-5)

Answers

By using the coordinates of the labeled point, the point-slope equation of the line include the following: D. y + 5 = -3(x - 3)

How to determine an equation of this line?

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

x and y represent the data points.m represent the slope.

0 5 2 -2

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (4 + 5)/(0 - 3)

Slope (m) = -9/3

Slope (m) = -3

At data point (3, -5) and a slope of -3, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - (-5) = 3(x - 3)  

y + 5 = -3(x - 3)

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Use the coordinates of the labeled point to find the point-slope equation ofthe line.A. y-5=-3(x+3)B.y-3-(x+5)C.

Question 14 (1 point)
Chris sells computer equipment for his company. He receives a base pay of $300
plus commission on his sales. He receives 10% for the first $5000 in sales and 15%
anything over $5000.
Last week, he sold $17000 in computer equipment. Find his gross pay.
Round to the nearest whole dollar.
For your answer, do NOT include symbols, commas, words, etc.
HELP PLS

Question 14 (1 point)Chris sells computer equipment for his company. He receives a base pay of $300plus

Answers

Chris' gross pay for the week after selling computer equipment worth $17,000 is $2,600.

How is the gross pay determined?

The gross pay is the addition of the base pay and the sales commission.

The sales commission is graduated and computed as follows:

Chris' base pay = $300

Sales Commissions:

First $5,000 = 10%

Above $5,000 = 15%

Last week's sales = $17,000

10% Commission = $500 ($5,000 x 10%)

15% Commission = $1,800 ($17,000 - $5,000 x 15%)

Total Commission = $2,300

Gross pay = Base Pay + Commission

= $2,600 ($300 + $2,300)

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What is the smallest number that rounds to 45 000 when round off to the nearest thousand​

Answers

The least number which can be rounded off to 45,000 is 44,500. While the largest is 45,499.

- BRAINLIEST answerer

Answer:

44 500

Step-by-step explanation:

When 44 499 is round off to nearest 1000,answer is 44 000.Therefore this is the smallest no. the rounds to 45 000

You are taking samples from a normally distributed population with mean 138 and standard deviation 14. Your batch size is 16. Let X-bar be the average of all 16 of your samples. What is the variance of X-bar?

Answers

The variance of X-bar is 12.25.

To find the variance of the sample mean (X-bar) for a normally distributed population, we can use the formula:

Variance of X-bar = (Population Variance) / (Sample Size)

In this case, the population mean (μ) is 138 and the standard deviation (σ) is 14. The population variance (σ^2) can be calculated as the square of the standard deviation, which gives us 14^2 = 196.

Since we are sampling with a batch size of 16, the sample size is also 16.

Now we can substitute these values into the formula:

Variance of X-bar = 196 / 16 = 12.25

Therefore, the variance of X-bar is 12.25.

It's important to note that the sample mean (X-bar) is an unbiased estimator of the population mean (μ). The smaller the sample size, the greater the variability of X-bar around the population mean.

As the sample size increases, the variance of X-bar decreases, indicating a more precise estimate of the population mean.

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a set of data is summarized by the stem and leaf plot below. stem123leaf002444788889225578344555666799 provide your answer below: there are values in the data set which are greater than or equal to 10 and less than or equal to 19. there are values in the data set which are greater than or equal to 30 and less than or equal to 39. there are values in the data set which are greater than or equal to 20 and less than or equal to 29.

Answers

Yes, there are values in the data set that are greater than or equal to 10 and less than or equal to 19. This is evident from the presence of "2" in the leaf plot, which indicates that there are values in the data set that are between 20 and 29.

No, there are no values in the data set that are greater than or equal to 30 and less than or equal to 39. This is evident from the absence of any leaves with a value of "3".

Yes, there are values in the data set that are greater than or equal to 20 and less than or equal to 29. This is evident from the presence of "2" in the leaf plot, which indicates that there are values in the data set that are between 20 and 29.

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Donald bought a box of golf balls for $9.20. There were 18 golf balls in the box.

About how much did each golf ball cost? Rename the decimal dividend as a whole number that is compatible with the divisor to estimate the quotient.

Answers

Answer:

$1.95 each

Step-by-step explanation:

18 div 9.20 = 1.95

22. Due to heavy floods in Bagmati province, thousand were rendered homeless 50 schools collectively decided to provide canvas for 1500 tents and share the whole expenditure equally. The lower part of each tent is cylindrical with base radius 2.8 and height 3.5m and the upper part is conical with the same base radius, but of height 2.1 m. If the canvas used to make the tents costs Rs 120 per m², find the amount shared by each school to set up the tents. ​

Answers

Answer: To calculate the amount of canvas needed for one tent, we need to calculate the total surface area of the tent. The tent consists of two parts: the cylindrical lower part and the conical upper part.

The surface area of the cylindrical part can be calculated as follows:

The base area of the cylinder = π × r² = π × 2.8² ≈ 24.61 m²

The lateral area of the cylinder = 2 × π × r × h = 2 × π × 2.8 × 3.5 ≈ 54.99 m²

So, the total surface area of the cylindrical part is the sum of the base area and lateral area, which is:

Total surface area of cylindrical part = 24.61 + 54.99 ≈ 79.60 m²

The surface area of the conical part can be calculated as follows:

The slant height of the cone = √(r² + h²) = √(2.8² + 2.1²) ≈ 3.44 m

The lateral area of the cone = π × r × slant height = π × 2.8 × 3.44 ≈ 24.12 m²

So, the total surface area of the conical part is the sum of the base area and lateral area, which is:

Total surface area of conical part = 24.61 + 24.12 ≈ 48.73 m²

Therefore, the total surface area of one tent is:

Total surface area of one tent = 79.60 + 48.73 ≈ 128.33 m²

To make 1500 tents, the total amount of canvas required is:

Total amount of canvas required = 1500 × 128.33 ≈ 192,495 m²

The cost of the canvas is given as Rs 120 per m². Therefore, the total cost of the canvas required to make the tents is:

Total cost of canvas = 192,495 × 120 ≈ Rs 23,099,400

As 50 schools have decided to share the expenditure equally, the amount shared by each school will be:

Amount shared by each school = Total cost of canvas / 50

Amount shared by each school = 23,099,400 / 50

Amount shared by each school ≈ Rs 461,988

Therefore, each school will have to contribute approximately Rs 461,988 to set up the tents.

Step-by-step explanation:

what are the features of the function g if g(x)= f(x+4) +8

Answers

The domain, range, x-intercept, or y-intercept of g(x) = f(x + 4) + 8. The features of g depend on the corresponding features of f.

Given the function g(x) = f(x + 4) + 8, let's examine its features:

Domain:

The domain of the function g will be the same as the domain of the function f, which depends on the restrictions or constraints of f.  However, it is important to note that shifting the input by 4 units (x + 4) does not inherently change the domain unless there are specific restrictions imposed by f.

Range:

Similar to the domain, the range of the function g will depend on the range of the function f.

x-intercept:

The x-intercept of a function is the point where the graph intersects the x-axis, meaning the y-coordinate is zero (y = 0). To find the x-intercept of g(x), we set g(x) = 0 and solve for x.

0 = f(x + 4) + 8

By subtracting 8 from both sides:

-8 = f(x + 4)

Since the exact value of x that makes f(x + 4) equal to -8. The x-intercept will depend on the behavior of f.

y-intercept:

The y-intercept of a function is the point where the graph intersects the y-axis, meaning the x-coordinate is zero (x = 0). To find the y-intercept of g(x), we substitute x = 0 into the function:

g(0) = f(0 + 4) + 8

g(0) = f(4) + 8

Again, the specific value of f(4) will depend on the behavior of the function f.

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A borrower wants to take a loan with a maximum effective monthly rate of 1%. What is the maximum APR with quarterly compounding that the borrower will accept from a lender?

Answers

The maximum APR with quarterly compounding that the borrower will accept from a lender is 16.132%.

How to calculate APR?

To convert the maximum effective monthly rate of 1% into an APR with quarterly compounding, we can use the formula:

\(APR = [(1 + \dfrac{r}{n})^n - 1] \times 4\)

Where r is the effective monthly rate and n is the number of compounding periods per year. In this case, we want to find the maximum APR with quarterly compounding that the borrower will accept, so we can substitute r = 1% and n = 3:

\(APR = ((1 + \dfrac{0.01}{3})^3 - 1) \times 4\)

APR = (1.0100333³ - 1) x 4

APR = 0.04033 x 4

APR = 0.16132 or 16.132%

Therefore, the maximum APR with quarterly compounding that the borrower will accept from a lender is 16.132%.

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How many different words can be formed with the letters AAAABBCCD (not necessarily meaningful words)?

Answers

Answer:

3780 different words

Step-by-step explanation:

The number of possible words that can be formed by a word with n letters is given by n! (factorial of n), but when we have repeated letters, we need to divide the result by the factorial of each number of repeated letters.

In this case, we have 9 letters, but we have 4 times A, 2 times B and 2 times C, so the formula to calculate the number of different words is:

\(number = {9!}/(4!2!2!)\)

\(number = (9*8*7*6*5*4*3*2)/(4*3*2*2*2)\)

\(number = 3780\ words\)

So we can form 3780 different words.



A 4-digit number is made up of different odd digits.
Write the greatest possible number that it can be?



Answers

Answer:

9753

Step-by-step explanation:

Find x. 40 pts and brainliest!

Find x. 40 pts and brainliest!

Answers

Answer: x = 6

Step-by-step explanation: In the equation "x / 2 = 3, rewrite the equation as "x = 2 x 3" and solve for "x." The solution is "x = 6."

Is the following sequence 2,4,16 arithmetic or geometric?

Answers

Answer:

This sequence is neither arithmetic nor geometric

-----------------

The given sequence is 2, 4, 16.

In an arithmetic sequence, the difference between consecutive terms is constant, while in a geometric sequence, the ratio of consecutive terms is constant.

In this sequence, neither the difference nor the ratio is constant:

4 - 2 ≠ 16 - 44/2 ≠ 16/4

Therefore, it is neither arithmetic nor geometric.

Help help help help math math

Help help help help math math

Answers

Answer:

Your answer is D.Divide

Step-by-step explanation:

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Hope you have a great day!

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