king4life35
king4life35 king4life35
  • 30-06-2020
  • Mathematics
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What's the answer to this I just need the numbers to these boxes (9th Grade Math)

Whats the answer to this I just need the numbers to these boxes 9th Grade Math class=

Respuesta :

eudora eudora
  • 05-07-2020

Answer:

Pennies = 80

Nickels = 160

Step-by-step explanation:

Two equations representing the relation between numbers of pennies and nickels have been given.

0.01p + 0.05n = 8.80 ---------(1)

n = 2p -----(2)

By substituting the value of n from equation (2) in equation (1).

0.01p + 0.05(2p) = 8.80

0.01p + 0.1p = 8.80

0.11p = 8.80

p = [tex]\frac{8.8}{0.11}[/tex]

p = 80

By equation (2)

n = 2×80

n = 160

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