7-7+5x-5x+2+2x^2+2x
Combine like terms

Answer:

15/8 Hours

Step-by-step explanation:

To start, I would find see how long it takes to walk a mile.

1/3 · 3 = 1

1/4 · 3 = 3/4

So we now know that walking one mile takes 45 minutes. Next, I multiplied 1 mile by 2.5 and repeated the same process with the time.

3/4 · 5/2 = 15/8

Therefore, it takes 15/8 hours to walk 2.5 miles.

The slope-intercept form of the equation is y = - mx + b.

The equation of a line can be expressed in a variety of ways. Although they may differ in appearance, all of them describe the same line because multiple equations can describe the same line. However, all linear equations describing the same line are equivalent.

The formula y = mx + b can be used to represent any straight line. Any straight line equation, known as a linear equation, can be expressed as y = mx + b, where m denotes the line's slope and b its y-intercept. The value of y at the line's intersection with the y-axis is its y-intercept.

Given a graph of the equation, choose two points on the line and use them to calculate the slope in order to put the equation in slope-intercept form. This is the answer to the equation's question. Next, determine the y-coordinates, intercept's which should be of the type (0,b). The value in the equation is the y-coordinate.

Thus, the equation derived from the graph is as follows:

Since we are aware that the slope here is negative,

Therefore Our formula is y = -mx + b.

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Answer:

-21/3 < -1/4 < 21% < 0.75 < 4/5

Step-by-step explanation:

The missing angle in the question is; m∠YWZ = 36°

Opposite rays are two rays that both start from a common point and go off in exactly opposite directions. Because of this the two rays (WX and WZ) form a single straight line through the common endpoint W.

If rays WX and WZ are opposite, then angle XWZ is a straight angle. A straight angle always has the measure of 180°.

Point Y is in the interior of ∠XWZ, then angles XWY and EWZ are supplementary angles (together form straight angle XWZ). Supplementary angles always add up to 180°, then

m∠XWY+m∠YWZ=180°

You are given that

m∠XWY = 4(m∠YWZ).

Substitute it into the previous equality:

4(m∠YWZ) + m∠YWZ=180°

5(m∠YWZ) = 180°

m∠YWZ = 36°

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This shows that they read less frequently than 95.7% of their classmates in the same grade level.

In statistics, a percentile is a metric that is used to express where one observation stands in relation to a larger group of data. It displays the proportion of data points that fall under a given value. For instance, if a student achieves a score in the 90th percentile on a standardised test, it signifies that they outperformed 90% of their peers who also took the test. As an alternative, if a child is taller than 25% of children their age and shorter than 75%, their height is in the 25th percentile for their age.

given

We must first compute the z-score using the following formula to determine the percentile of the child's reading proficiency.

z = (x - μ) / σ

where x represents the child's reading rate, represents the grade-level mean reading rate, and represents the standard deviation.

Inputting the values provided yields:

z = (46.2 - 85) / 22

z = -1.727

We can calculate or use a conventional normal distribution table to obtain the value of 0.0428 for the region to the left of z = -1.727. The child's reading rate is at the 4.28th percentile according to this statistic.

As a result, the child's reading proficiency is 4.3 percentile (rounded to one decimal place).

This shows that they read less frequently than 95.7% of their classmates in the same grade level.

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Answer:

4 oranges for $1.36 is more than 3 for $1.00

Step-by-step explanation:

1/3 = 1/3 or .3 repeating

1.36/4 = 0.34

.3 repeating is less than 0.34

Answer:

f(x) = 4x + 48

Step-by-step explanation:

Replace the positions of x and y and isolate y to find the inverse of a function.

y = 1/4x – 12

x = 1/4y – 12

x + 12 = y/4

4(x + 12) = y

4x + 48 = y

f(x) = 4x + 48

Answer:

EB

Step-by-step explanation:

all of the other lines are either diagonal on a 2D plane, or they are regular lines that make up the rectangular prism.

Answer:

The slope (m) = 2/3

Step-by-step explanation:

Taking any two points on the line:

(0,-2) & (3,0)

Using the slope formula to calculate the slope (m):

m = \(\frac{y2-y1}{x2-x1}\)

= (0-(-2))/(3-0)

= (0+2)/3

= 2/3

Hence, the slope (m) is 2/3.

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

Answer:

what is the expression he wrote?

Step-by-step explanation:

Answer:the question

wh

Step-by-step explanation:

Answer:

n>2

Step-by-step explanation:

14n>11n+6

14n-11n>6

3n>6

n>6/3

n>2

Answer:

n > 2

Step-by-step explanation:

14n - 11n > 11n + 6 - 11n

3n > 6

3n/3 > 6/3

n > 2

Answer:

Step-by-step explanation:

The new store will have a profit of $3400 after its third month in business.

The correct option is D.

For variable x : ax² + bx + c = 0, where a≠0 is a standard quadratic equation, which is a second-order polynomial equation in a single variable. It has at least one solution since it is a second-order polynomial equation, which is guaranteed by the algebraic basic theorem.

Given:

George has opened a new store, and he is monitoring its success closely.

He has found that this store’s revenue each month can be modeled by r(x)=x²+5x+14 where x represents the number of months since the store opens the doors and r(x) is measured in hundreds of dollars.

He has also found that his expenses each month can be modeled by c(x)=x²−3x+4 where x represents the number of months the store has been open and c(x) is measured in hundreds of dollars.

(r−c)(x) = x²+5x+14 -x²+3x-4

(r−c)(x) = 8x+10

(r−c)(3) = 24+10 = 34 in hundreds of dollars.

Therefore, the new store has profit of $3400.

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\(\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}\)

Actually Welcome to the Concept of the Straight lines.

Since,

y-y1 = m(x-x1)

hence the option B.) is correct.

====> y-3 = 6 (x+8)

Answer:

k = 5

Step-by-step explanation:

20/4 = 5

Answer:

Step-by-step explanation:

1.

-3 + 8x ≥ 21

+3            +3

8x ≥ 24

divide both sides by 8

x ≥ 3

2.

d is false, because when you plug 5 in for x the solution would come out to be 19 < 17

Hope this helps!!! happy holidays!!

Answer:

1. x ≥ 3

2. d. 5

Step-by-step explanation:

Answer: 22( w + 2 ) =77 and the amount of the water bottle would be 1.50

Step-by-step explanation: i dont know what to write??

The shaded region is more than 3 m from P and closer to Q than to P.

As see in the image:

Point Q is 3 m far form the shaded region.

The shaded region more than 3 m from P and closer to Q than to P.

Therefore, the  shaded region is close to Q.

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The sum of the two complex numbers will give:

(-4 + i) + (10 - 5i) = 6 - 4i

So the correct option is the third one.

Let's assume we have two complex numbers which are:

A = a + bi

B = c + di

The sum between these two complex numbers is:

A + B = (a + bi) + (c + di)

Taking i as a common factor we can rewrite:

(a + bi) + (c + di) = a + c + (b + d)i

And that is the general sum.

Here we want to solve:

(-4 + i) + (10 - 5i)

Again, if we take i as a common factor we can rewrite:

-4 + 10 + (1 - 5)*i

6 - 4i

So the correct option is the third one.

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The probability that Yasemin will not be offered a coupon on at least one of the days she visits the website is approximately 0.0625 or 6.25% (rounded to the nearest hundredth).

To calculate the probability that Yasemin will not be offered a coupon on at least one of the days she visits the website, we can calculate the probability of the complementary event, which is the probability that she will be offered a coupon on every day.

Let's break down the problem step by step:

The probability of Yasemin being offered a coupon on a single day is 50% or 0.5.

The probability of Yasemin not being offered a coupon on a single day is the complement of the above, which is 1 - 0.5 = 0.5.

Since each day's offer is independent, we can multiply the probabilities together for the four days:

P(not offered a coupon on any day) = P(not offered a coupon on day 1) * P(not offered a coupon on day 2) * P(not offered a coupon on day 3) * P(not offered a coupon on day 4)

= 0.5 * 0.5 * 0.5 * 0.5

= 0.0625

Therefore, the probability that Yasemin will not be offered a coupon on at least one of the days she visits the website is approximately 0.0625 or 6.25% (rounded to the nearest hundredth).

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Answer:

1

Step-by-step explanation:

-f + 2 + 4f = 8 - 3

3f = 6 - 3

3f = 3

f = 1

Answer:

f=1

Step-by-step explanation:

-f+2+4f=8-3

First what you want to do i that you want to simplify as best as you can.

-f+2+4f=8-3 becomes 3f+2=8-3 because you add the 4f to the -1f.

Then, just subtract 2 from both sides to get 3f=8-5

Now, simplify even more

3f=8-5 becomes 3f=3

It should be easy now, but if you still need help, divide

f=1

Answer:

A. The number of sit-ups is 5 more than twice the number of push-ups he does.

Step-by-step explanation:

Expressions:

p = push-ups done

2p + 5 situps = total situps

2p means that he does twice the amount of situps than he did as pushups.

+ 5 situps means that he does an extra 5 situps

The optimal solution for the amount of cash to withdraw each time to minimize transportation costs and maximize interest earnings is determined by calculating the Economic Order Quantity (EOQ) using the formula Q = √((2 * C * T) / r), and rounding the result to a convenient amount.

The Economic Order Quantity (EOQ) model is typically used for inventory management, not for optimizing cash withdrawals. However, if we assume that the question is seeking an optimal withdrawal strategy to minimize transportation costs and maximize interest earnings, we can approach it as follows:

Let's denote:

C = Annual cash need ($5,000)

T = Transportation cost per visit ($5)

r = Annual interest rate (5%)

To find the optimal solution for the amount of cash to withdraw each time, we can consider the trade-off between transportation costs and interest earnings. The objective is to minimize the total cost.

Calculate the optimal order quantity (Q) using the EOQ formula:

Q = √((2 * C * T) / r)

Round the calculated Q to the nearest convenient amount, such as multiples of $100 or $500.

The optimal solution would be to withdraw the rounded Q amount each time to minimize transportation costs while still meeting the annual cash need.

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Hi my lil bunny!

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Let's solve your equation step-by-step.

\(2x-3x+5=18\)

Step 1: Simplify both sides of the equation.

\(2x-3x+5=18\\2x + -3x + 5 = 18\)

\(( 2x + -3x ) + ( 5) = 18\) (Combine Like Terms)

\(-x + 5 = 18\\-x + 5 = 18\)

Step 2: Subtract 5 from both sides.

\(-x + 5 - 5 = 18 - 5 \\-x = 13\)

Step 3: Divide both sides by -1.

\(\frac{-x}{-1} = \frac{13}{-1} \\x = -13\)

Answer : \(\boxed {x = -13}\)

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Have a great day/night!

❀*May*❀

Answer:

Step-by-step explanation:

\( \mathsf{2x - 3x + 5 = 18}\)

Collect like terms

\( \mathsf{ - x + 5 = 18}\)

Move constant to R.H.S and change it's sign

\( \mathsf{ - x = 18 - 5} \)

Calculate the difference

\( - x = 13\)

Change the signs on both sides of the equation

\( \mathsf{x = - 13}\)

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

\( \blue{ \mathsf{verification}}\)

\( \mathsf{LHS \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: RHS}\)

\( \mathsf{2x - 3x + 5 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 18}\)

\( \mathsf{ = 2 \times ( - 13) - 3 \times ( - 13) + 5}\)

\( \mathsf{ - 26 + 39 + 5}\)

\( \mathsf{ = 13 + 5}\)

\( = 18\)

Thus, LHS = RHS

hope I helped!

Best regards!

Based on Chebyshev's theorem, we can conclude that approximately 75% of the club members' ages are between 27 and 67.

Based on Chebyshev's theorem, we can conclude that at least (1 - 1/k^2) of the data falls within k standard deviations of the mean, where k is any positive number greater than 1.

In this case, the mean age of the club members is 47 years and the standard deviation is 10 years. To find the percentage of club members aged between 27 and 67, we need to calculate the number of standard deviations between these ages and the mean.

For the lower limit, (27 - 47) / 10 = -2 standard deviations from the mean.
For the upper limit, (67 - 47) / 10 = 2 standard deviations from the mean.

Since k is any positive number greater than 1, we can choose k = 2. Therefore, according to Chebyshev's theorem, at least (1 - 1/2^2) = 1 - 1/4 = 3/4 or 75% of the club members' ages fall between 27 and 67.

In summary, based on Chebyshev's theorem, we can conclude that approximately 75% of the club members' ages are between 27 and 67.

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Answer:

22

Step-by-step explanation:

Answer:

6x

Step-by-step explanation:

because i said so 2+2+2=6 and x=5 but two x=10

Using the normal distribution, the probability that the sample proportion will be less than 0.1768 is of 0.9222 = 92.22%.

The z-score of a measure X of a normally distributed variable with mean \(\mu\) and standard deviation \(\sigma\) is given by:

\(Z = \frac{X - \mu}{\sigma}\)

For this problem, the proportion and the sample size are given by:

p = 0.12, n = 66.

Hence the mean and the standard error are:

The probability that the sample proportion will be less than 0.1768 is the p-value of Z when X = 0.1768, hence:

\(Z = \frac{X - \mu}{\sigma}\)

By the Central Limit Theorem:

\(Z = \frac{X - \mu}{s}\)

\(Z = \frac{0.1768 - 0.12}{0.04}\)

Z = 1.42

Z = 1.42 has a p-value of 0.9222.

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Answer:

8 x 12 x 20 = 1920/2 = 960 cm^2

hope this helped

answer= 960

Step-by-step explanation:

As per given gross income of $7925 , federal tax at the rate of 10% is $792.50, state tax at the rate of 5% is $396.25 and FICA combined is $1188.75.

As given,

Gross income=$7925

Rate of federal tax=10%

Amount of federal tax=10% of $7925

                                     =(10/100)×7925

                                     =$792.50

Rate of state tax=5%

Amount of state tax=5% of $7925

                                     = (5/100) ×7925

                                     = $396.25

FICA combined= $(792.50 +396.25)

                          = $1188.75

Therefore, as per given gross income of $7925 , federal tax at the rate of 10% is $792.50, state tax at the rate of 5% is $396.25 and FICA combined is $1188.75.

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