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3 years ago

In 2012 five us postal stamps cost 2.20. how much did seven stamps cost

Mathematics

2 answers:

Neporo4naja [7]3 years ago

8 0

Answer=3.08

5 7
____=____
2.20 x

cross multiply
5x=15.4
divide both sides by 5
x=3.08

slega [8]3 years ago

8 0

3.08 because 2.2 divide 5 because it is 0.44
0.44 times 7 is 3.08
~JZ

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Step-by-step explanation:

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===========================

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