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Flauer [41]
3 years ago
5

Please help. I’ll mark you as brainliest if correct!!!!! ON B!

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

5

Step-by-step explanation:

Because if 1,3 times 130

than 1.25 equals 125 so she would only earn 5 dollars less money

130>125

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Cindy plans to shop for her school supplies and wants to know how much money she would need to spend. from her friend she knows
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Let the cost of 1 notebook be x and the cost of 1 binder be y.

4 notebooks and 3 binders would cost 23.5

Therefore, 4x + 3y = 23.5     (1)

7 notebooks and 6 binders would cost 44.5

Therefore, 7x + 6y = 44.5     (2)

Multiply the first equation by 2.

8x + 6y = 47     (3)

(3) - (2) gives

x = 2.5

Substitute the value of x in (1), we get,

4(2.5) + 3y = 23.5

10 + 3y = 23.5

3y = 23.5 - 10

3y = 13.5

y = 13.5/3

y = 4.5

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5x + 3y = 5(2.5) + 3(4.5)

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Hence, cost of 5 notebooks and 3 binders is $26.

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3 years ago
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andriy [413]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Hope this helps!

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balandron [24]

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Step-by-step explanation:

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