Question

What's the answer to this I just need the numbers to these boxes (9th Grade Math)

Answer 1

Pennies = 80

Nickels = 160

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 =
`(8.8)/(0.11)`

p = 80

By equation (2)

n = 2×80

n = 160