Answer:
can't you do it with calculator?
A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9.
What is the original number?
A: -30
B: -4
C: 4
D: 30
(No shown work is needed)
Answer:
C: 4
Step-by-step explanation:
when a positive and negative number are multiplied you will get a negative number.
So,
4-7= -3
-3x3= -9
Therefore, your answer is C: 4. Hope this helps! :)
Please help!
Identify the slope of the function: f(x)=2(3x-7)
A:3
B:6
C:7
D:2
Answer:
The slope is 6
Step-by-step explanation:
f(x)=2(3x-7)
Distribute the 2
f(x)=2*3x-2*7
f(x) = 6x -14
This is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
The slope is 6 and the y intercept is -14
The slope is 6
how many line segments are needed to connect 20 points in a plane so that each pair of points are the endpoints of a line segment
What is the measure of AngleDCF?
Three lines extend from point C. The space between line C D and C E is 75 degrees. The space between lines C E and C F is 54 degrees.
The measure of AngleDCF is
degrees.
Answer:
129°
Step-by-step explanation:
∠DCE = 75
∠ECF = 54
∠DCF = ∠DCE + ∠ECF
= 75 + 54
= 129°
Answer:
129
Step-by-step explanation:
solve for x
7(x-1)=5(x-3)
Answer:
x= -4
Step-by-step explanation:
if you expand the equation you get
7x-7 = 5x-15
group the like terms together
7x-5x = -15+7
2x= -8
if you divide both sides by 2 to remain with x alone, you get
x=-4
Answer:
-4
Step by step explanation:
expand
7x-7=5x-15
subtract 5x
2x-7=-15
subtract -7
2x=-8
divide by 2
x=-4
A city has a population of 230,000 people. Suppose that each year the population grows by 5%. What will the population be after 5 years?
There will be about 288,207.08 people living in the city in five years.
The population of a city with a 230,000-person population that increases by 5% year can be determined using the compound interest formula. Compound interest is calculated as follows: A = P(1 + r/n)nt
Where n is the number for times it is added up per year, r is the yearly interest rate, A is the potential value, P is the current value, and t is the length of the period in years. In this instance, the present value was 230,000, the yearly interest rate was 5%, the duration of the period is 5, and the interest compounded once a year. When these values are added for the formula, we obtain:
\(A = 230000(1 + 0.05/1)^(1 \times 5)\)
\(A = 230000(1.05)^5\)
A = 288,207.08
The growth rate is assumed to stay constant throughout at all times period, which could sometimes not be the case. When predicting population increase, it is also important to take into account additional variables like migration, birth rate, as well as mortality rate.
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PLLLLSSSS HELP MEH! BRAINLIEST!!
Answer:
#4: 2n - 6 # 3: 2x + 9 = 17
Step-by-step explanation:
 If triangle ABC ~ triangle AVW, find the values of x
The value of x that satisfies the proportion is x = 7.5.
Since triangle ABC ~ triangle AVW, we know that their corresponding sides are proportional. In other words:
AB/AV = BC/VW = AC/AW
We are given that AB = 8, BC = 5, AC = 7, AV = 12, and VW = x. We need to find the value of x that satisfies the proportion above.
Using the first two ratios, we get:
AB/AV = BC/VW
8/12 = 5/x
Multiplying both sides by 12x, we get:
8x = 60
x = 7.5
Now, we can use the third ratio to check our answer:
AB/AV = AC/AW
8/12 = 7/AW
Multiplying both sides by AW, we get:
8AW = 84
AW = 10.5
We can now check that the ratios are all equal:
AB/AV = BC/VW = AC/AW
8/12 = 5/7.5 = 7/10.5
Simplifying each fraction, we get:
2/3 = 2/3 = 2/3
Therefore, the value of x that satisfies the proportion is x = 7.5.
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solve y to the third power=125
Answer:
5
Step-by-step explanation:
In Algebra, the letters used to
represent unknown values are
called
because
their values can change
change or vary.
Answer:
Variables
Step-by-step explanation:
Lakesha is taking three of her friends to see the latest movie. Each ticket is $5.50, and she is paying for all four tickets. How much money does Lakesha need to bring to pay for all of the tickets? A. $16.50 B. $22.00 C. $49.50 D. $55.00
Answer: $22
Step-by-step explanation:
$5.50 * 4 = 22
Answer:
B. $22.00
Step-by-step explanation:
The expression you need to set up is 5.5 times 4, since she needs to pay 4 tickets and each is $5.50. After you multiply, you should get 22, which is the answer.
how many pets do i got ill give hint
i have
11 bunny rabbits
4 dogs
1 gunie pig
3 donkeys
4 pigs
and 12 cats
how many pets do i have
Answer:
35 pets
Step-by-step explanation:
11+4+1+3+4+12=15+4+16=19+16=35
Answer:
I got in total you have 35 pets
Step-by-step explanation:
I added \(~_~)/
Find the value of x.
What color is a apple
Answer:
red or green
Step-by-step explanation:
Answer:
The color of an apple is Red or Green or Yellow
Step-by-step explanation:
Sep 22, 6:10:53 PM
Watch help video
What is the slope of the line that passes through the points (2, -3) and (2,13)?
Write your answer in simplest form.
Answer:
Submit Answer
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attempt 1 out of 2
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Answer:
-6 and 26
Step-by-step explanation:
What is the equation of a horizontal line passing through the point (−3, 8)
the wilson company purchased $44,000 of merchandise from the poole wholesale company. wilson also paid $3,000 for freight costs to have the goods shipped to its location. which of the following statements regarding the necessary entries for the transactions is true? wilson uses the perpetual inventory system.
The necessary entries for the transactions would include a debit to the Inventory account for the total cost of the merchandise and freight, which is $47,000 ($44,000 + $3,000).
There would also be a credit to the Accounts Payable account for $44,000 to record the amount owed to Poole Wholesale Company for the merchandise. The remaining $3,000 would be credited to the Cash account to record the payment made for freight costs.
As Wilson Company uses the perpetual inventory system, the cost of the merchandise purchased is immediately recorded in the Inventory account upon purchase. The debit to the Inventory account reflects the increase in the company's inventory as a result of the purchase, while the credit to the Accounts Payable account reflects the liability owed to the supplier for the merchandise.
The credit to the Cash account reflects the outflow of cash to pay for the freight costs. By making these entries, Wilson Company will have an accurate record of the cost of its inventory and the amount it owes to its supplier.
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Jenny bough 4 combo packs of popcorn and candy for 32$ at the movie theater, what was the cost of each pack?
Answer:
$8
Step-by-step explanation:
Each pack includes one pack of popcorn and one pack of candy. Since Jenny bought 4 packs, and it cost $32 in total, the equation will look like:
4x = 32
To solve this you divide 4 into each side of the equation:
4x = 32
---- ----
4 4
x = 8
The answer is 8.
Hope this helped.
What is the equation on the graphed line (2,6) (-4,-6) answer in slope intercept form
Answer:
y = 2x + 2
Step-by-step explanation:
→ Find the gradient
\(\frac{-6-6}{-4-2} =\frac{-12}{-6} =2\)
→ Rewrite into y = mx + c format
y = 2x + c
→ Substitute in a coordinate pair
6 = 4 + c ∴ c = 2
→ Rewrite into y = mx + c format
y = 2x + 2
can i get help with 1 and 4 please?
Answer:
1. 0
4. 6
Step-by-step explanation:
1. 2 x -1 + 1 ×2 = -2 + 2 = 0
2. 2x - 4 x 3 = 0
or 2x - 12 = 0
or 2x = 12
or x = 6
Ebony had a sum of money.
She kept ½ for herself. She decided to give the rest away to family and charity.
¾ of the money she gave away went to family.
a) What fraction of the total amount did Ebony give to charity?
a)If the amount was £200, how much money did she give to family?
Answer: She gave a fraction of 1/4 to charity, and she gave $150 to family
Step-by-step explanation: Ebony had a totaly of $200 dollars to start with to give away that means if she gave 3/4 of $200 to family that would mean she gave $150 dollars to her family
Now the other part of the question is how much of the total amount did Ebony give to charity now if I understand that part correctly then it wants you to give the fraction of the total which would be she gave 1/4 out of the $200 she had for family and charity which means she gave 1/4 of $200 which is $50 to charity
Hope this Helps!
Joaquin works at a loading dock. He has been asked to load 30 trucks today, and so far he has finished loading 12. Name the numerator and denominator of the fraction that represents the number of trucks that he has loaded out of the total needing to be loaded .
Answer:
first choice in the image.
numerator: 12
denominator: 30
Step-by-step explanation:
"Name the numerator and denominator of the fraction that represents the number of trucks that he has loaded out of the total needing to be loaded"
so numerator = "number of trucks that he has loaded"
and denominator = "total needing to be loaded"
Joaquin was asked to load 30 trucks today. So his/her total would be 30.
thus the denominator is 30.
Joaquin has finished loading 12 already, which means he/she has loaded 12. so, the numerator is 12.
what is the unit rate of 48 ounces for 5.76 $
This means that each ounce of the product costs $0.12.
The unit rate is a mathematical calculation that determines the cost per ounce of a particular product. In this case, we are given that 48 ounces of a product costs $5.76. To find the unit rate, we need to divide the cost by the number of ounces.
So, the unit rate for 48 ounces of this product would be:
$5.76 ÷ 48 ounces = $0.12 per ounce
It's important to note that unit rates can be useful when comparing the prices of different products or different sizes of the same product. By calculating the unit rate, we can determine which option offers the best value for our money.
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The mass of a colony of bacteria is growing at a rate proportional to its mass. (a) What is the differential equation that describes this? (use k for your proportionality constant)
y′ =______
(b) Initially that mass is 10 grams. Initially the mass is increasing at a rate of 5 grams per day. What is the mass after t days? ______grams (c) When will the mass be 60 grams?______days
The mass will be 60 grams after 2ln(6) days, which is approximately 4.15 days.
(a) We know that the rate of change of the mass is proportional to its mass. Let y(t) be the mass of the colony at time t, then we can write:
y'(t) = ky(t)
where k is the proportionality constant.
(b) Initially, the mass is 10 grams and the rate of increase is 5 grams per day. This means that at time t=0, we have:
y(0) = 10
y'(0) = 5
We can use these initial conditions to find the value of k:
y'(t) = ky(t)
5 = k * 10
k = 0.5
Now we can solve the differential equation:
y'(t) = 0.5y(t)
The general solution to this equation is:
\(y(t) = Ce^(0.5t)\)
where C is the constant of integration.
Using the initial condition y(0) = 10, we can solve for C:
\(10 = Ce^(0.5*0)\)
C = 10
So the particular solution is:
\(y(t) = 10e^(0.5t)\)
Therefore, the mass after t days is given by:
\(y(t) = 10e^(0.5t)\) grams.
(c) We want to find when the mass will be 60 grams. We can use the particular solution we found in part (b) and set it equal to 60:
\(y(t) = 10e^(0.5t)\) = 60
Solving for t, we get:
e^(0.5t) = 6
Taking the natural logarithm of both sides, we get:
0.5t = ln(6)
t = 2ln(6)
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yuki works at a garden store. She is stacking 40 pound bags. what is the total weight of 5 bags of soil
Answer:
w=40b
Step-by-step explanation:
Answer:
200
Step-by-step explanation:
You multiply 40 by 5.
How many solutions does this linear system have?
y = 2/3x+ 2
6x - 4y = -10
• one solution: (-0.6, -1.6)
O one solution: (-0.6, 1.6)
no solution
infinite number of solutions
The given linear equation has one solution: (-0.6, 1.6). The correct option is the second option one solution: (-0.6, 1.6)
Solving system of linear equationsFrom the question, we are to determine the number of solutions the given linear equation has
The given system of equations is
y = 2/3x+ 2 ---------- (1)
6x - 4y = -10 ---------- (2)
Substitute equation (1) into equation (2)
6x - 4y = -10
6x - 4(2/3x +2) = -10
6x - 8/3x -8 = -10
6x - 8/3x = -10 + 8
10x/3 = -2
10x = -2 × 3
10x = -6
x = -6/10
x = -0.6
Substitute the value of x into equation (1)
y = 2/3(-0.6)+ 2
y = -0.4 + 2
y = 1.6
The solution to the given system of equation is x = -0.6, y = 1.6. That is, (-0.6, 1.6)
Hence, the given linear equation has one solution: (-0.6, 1.6). The correct option is the second option one solution: (-0.6, 1.6)
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Complete the square to re-write the quadratic function in vertex form:
Answer:
(x+2)^2 - 6
Step-by-step explanation:
procedures that allow researchers to rule out certain explanations for results other than the hypotheses they wish to test are referred to as
Control procedures are those that enable researchers to rule out specific causes for results other than the hypotheses they intend to test.
In a controlled experiment, every factor besides the independent variable is kept under control or constant to ensure that it has no impact on the dependent variable.
This experiment involves the systematic manipulation of an independent variable (the cause) and the measurement of the dependent variable (the effect). This ensures that any extraneous variables are controlled.
This experiment aids the researcher in determining whether the experimental group and control group differ from one another.
For example, during the medication effect test, the group that receives the medication is referred to as the experiment group. Those who don't get any medication are referred to as the control group.
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What kind of triangle will this be? Sides in cm 4,6,4 and Angles 35, 110, 35
Answer:
right isoscles
Step-by-step explanation:
right = one angle more than 90
isoscles = 2 equal sides
The table shows the proof of the relationship between the slopes of two perpendicular lines. What is the missing statement in step 5?
Given
\(QS\perp US\)similar triangles = QRS and STU
Find
Missing statement .
Explanation
As we have given
\(QS\perp US\)similar triangles QRS and STU
by property of similar triangle we have ,
\(\frac{QR}{RS}=\frac{ST}{TU}\)Slope of QS * Slope of US =
\(\frac{QR}{RS}\times\frac{-TU}{ST}\)now , substituting the property of equality
Slope of QS * Slope of US =
\(\frac{ST}{TU}\times-\frac{TU}{ST}\)So,
Slope of QS * Slope of US = -1
Final Answer
Missing statement =
\(Slope\text{ of QS }\times Slope\text{ of US =}\frac{\text{ST}}{\text{ }TU}\times\frac{-TU}{ST}\)Correct option is A.