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mihalych1998 [28]
3 years ago
5

Three packages of pens and one box of paper cost $26. Two packages of pens and 7 boxes of paper cost $49. How much does one box

of paper cost?
Mathematics
1 answer:
algol133 years ago
5 0

Answer:

5 dollars

Step-by-step explanation:

Let's call the price of a package of pens n, and the cost of a box of paper r.

3n+r=26

2n+7r=49

Multiply the first equation by 7:

21n+7r=182

Subtract the second equation from the first:

19n=133

Divide both sides by 19 to isolate n:

n=7

Plug this back in to find the value of a box of paper:

3(7)+r=26

21+r=26

r=5

Hope this helps!

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Answer:

<h2>x = 2, y = 3 → (2, 3)</h2>

Step-by-step explanation:

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8 0
3 years ago
A basket ball player attempts 15 baskets in a game . He makes 9 of the attemps what is the ratio
Paladinen [302]

Answer:

9:15 or 3:5

Step-by-step explanation:

A ratio can compare a part of a whole to a whole.

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Put these values in a ration.

part:whole

9:15

Notice that 9 and 15 can be simplified by dividing both numbers by 3.

3:5

This is your simplified ratio.

Hope this helps!

4 0
2 years ago
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Which of the sets of equations represent the two lines graphed?
Oksi-84 [34.3K]

Answer:

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Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

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Its equation is:

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Multiply through by 2

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Solve for y,

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Its equation is

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Multiply through by -4

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Solve for y

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