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pantera1 [17]
3 years ago
10

The expression 15p+12r shows the total cost of buying p printed shirts and r plain shirts find the total cost if you buy two pri

nted shirts and three plain shirts
Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0

Answer:

$66 total cost

Step-by-step explanation:

15p + 12r

15 (2) + 12 (3) = substitute 2 for p for printed shirts and 3 for r for plain shirts

30 + 36 + 66

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Find the solution of this system of equations<br> 4x - 5y = -12<br> -X + 5y = 18
Natalka [10]

4x - 5y = -12

-x + 5y = 18

Add the equations together:

4x + -x = 3x

-5y + 5y = 0

-12 + 18 = 6

So now you have:

3x = 6

Divide both sides by 3:

X = 2

Now you have the value of x, replace x with 2 in one of the equations and solve for y:

4(2) -5y = -12

8 -5y = -12

Subtract 8 from both sides:

-5y = -20

Divide both sides by -5:

Y = 4

The solution is x = 2 and y = 4 which is written as (2,4)

7 0
2 years ago
The American flag is customarily made with its width and length in the ratio of 10 to 19. Which of the following dimensions is i
saul85 [17]
You have not provided the options, therefore, I cannot give an exact answer. However, I can help you with the procedures.

We are given that the ratio between the width and the length of the flag is 10 to 19.
This means that:
\frac{width}{length} =  \frac{10}{19}

Therefore, to get the correct choice, all you have to do is divide the width by the length, if the result is 10/19, then the dimensions given are correct.

Examples:
For length = 190 and width = 100,
width / length = 100 / 190 = 10 / 19 .........> correct choice

For length = 1.9 and width = 1,
width / length = 1 / 1.9 = 10 / 19 .......> correct choice

Hope this helps :)
3 0
2 years ago
Which of the following are valid names for the given triangle? Check all that apply:
natka813 [3]

Answer:

A, C, E

Step-by-step explanation:

Only letters T, A, and X on the triangle can be used to describe it, regardless of the order they are in.

4 0
2 years ago
The average temperature in Antarctica is -70.6°F. The average temperature at the equator is 86°F. What is the distance between t
Zanzabum
I’m pretty sure is The answer b
7 0
2 years ago
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if your car gets 28 miles per gallon, how much does it cost to drive 310 miles when gasoline cost $3.50 per gallon?
Butoxors [25]
Hi,


Work:

28miles = 1gallon

To find the cost of gallons spend for 310 miles you need to first find the amount of gallons consumed on 310 miles path.

310 \div 28 = 11.07gallons

If each costs 3.5$ you need to multiply gallons with money.

3.5 \times 11.07 = 38.745

You would spend 38.745$ to drive 310 miles.

Hope this helps.
r3t40
3 0
3 years ago
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