AskQ logo

STUCK ON HOMEWORK?

ASK FOR HELP FROM OUR KIASUPARENTS.COM COMMUNITY!

Question

Answer

a) $1 – $0.50 = $0.50
$12/0.50 = 24
There are 24 fifty cent coins.

b) Number of twenty cent coins = 24/2 = 12
Amount saved = (12×0.2) + (24×0.5) + (24×1.0) = $38.40

c) $1 = 5 twenty cent coins
12 + 5n = 24 – n     
6n = 12
n = 2
In the end, there are 12 + (5×2) = 22 twenty cent coins.

0 Replies 1 Like