Coach purchased footballs and basketballs from two different stores.

Mathematics

1 answer:

Serjik [45]3 years ago

4 0

Answer:

$6.25

Step-by-step explanation:

Let football cost be f and basketball cost be b

We have two equations as per given:

5f + 14b = 110
10f + 6b = 82.50

We need to find b, therefore we'll eliminate f

To do so we'll double the first equation and subtract the second one:

2(5f + 14b) - (10f + 6b) = 2(110) - 82.50
28b - 6b = 220 - 82.50
22b = 137.5
b = 137.5/22
b = 6.25

Each basketball costs $6.25

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nirvana33 [79]

Answer:

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a. 3p (1+r)

b. p * (1+ r) * 3

Step-by-step explanation:

a) Data and Calculations:

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and r = the sales tax rate

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6 0

2 years ago

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poizon [28]

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$\frac{40 + x}{2} = 29 \\ 40 + x = 58 \\ x = 18$