You are buying decorations for a birthday party. six rolls of crepe paper and 20 balloons cost $11.90. after you start decoratin
g, you need more supplies. you buy 2 more rolls of crepe paper and 15 more balloons for $6.05. how much did each roll of crepe paper cost?
a.$1.15
b.$1.58 eliminate
c.22.6¢
d.25¢
a.$1.15
b.$1.58 eliminate
c.22.6¢
d.25¢
1 answer:
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Answer:
x = 20
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
( cross- multiply )
9x = 180 ( divide both sides by 9 )
x = 20