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2 years ago

7

A store sells six cupcakes for $7. How much do 18 cupcakes cost?

2 answers:

ollegr [7]2 years ago

7 0

Answer:

21 cupcakes

Step-by-step explanation:

6 = $7

18 = 6 x 3

18 = 7 x 3

18 = $21

Bogdan [553]2 years ago

6 0

Answer:

21

Step-by-step explanation:

We can use proportions to solve

6 cupcakes 18 cupcakes

------------------- = -----------------

7 dollars x dollars

Using cross products

6x = 7* 18

6x =126

Divide by 6

6x/6 =126/6

x =21

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