Question 320204
The change is $9.50.
{{{30}}} fifty-cent pieces adds up to {{{15}}} dollars
{{{15}}} fifty-cent pieces adds up to {{{7.5}}} dollars, and
if the rest is quarters, that is {{{15*25 = 3.75}}}, and
{{{7.5 + 3.75 = 11.25}}} that's too much
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{{{10}}} fifty-cent pieces adds up to {{{5}}} dollars
and {{{20*25 = 5}}} dollars and {{{5 + 5 = 10}}} That's {{{50}}} cents over
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{{{9}}} fifty cent pieces adds up to {{{4.5}}} dollars
and {{{21*25 = 5.25}}} dollars {{{4.5 + 5.25 = 9.75}}} That's {{{25}}} cents over
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{{{8}}} fifty cent pieces = {{{4}}} dollars
{{{22*25 = 5.5}}} dollars and {{{4 + 5.5 = 9.5}}} this is the answer
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The change is 8 fifty-cent piece and 22 quarters