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Joakim is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes and chocolate on 1/2 of the remaining cupcakes. The rest will get vanilla icing. How many cupcakes have vanilla icing?

User Pkliang
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2 Answers

4 votes

Answer:

9 cupcakes.

Explanation:

We have been given that Joakim is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes.

Let us find the number of cupcakes with mint icing.


\text{Cupcakes with mint icing}=30* (1)/(5)


\text{Cupcakes with mint icing}=6

We have been given that 1/2 of the remaining cupcakes have chocolate icing.


\text{Cupcakes with chocolate icing}=(30)/(2)


\text{Cupcakes with chocolate icing}=15

We have been given that remaining cakes have vanilla icing.


\text{Cupcakes with vanilla icing}=30-(6+15)


\text{Cupcakes with vanilla icing}=30-21


\text{Cupcakes with vanilla icing}=9

Therefore, 9 cupcakes will have vanilla icing.

4 votes

Answer: 12 cupcakes have vanilla icing.

Explanation:

We know that Joakim is icing a total number of 30 cupcakes.

According to the exercise, Joakim spreads mint icing on
(1)/(5) of the cupcakes.

Let be "m" the number of cupcakes that have mint icing. Then


m=(30)((1)/(5))=6

He spreads chocolate on
(1)/(2) of the remaining. The remaining is:


30\ cupcakes-6\ cupcakes=24\ cupcakes

Let be "c" the number of cupcakes that have chocolate. Then


c=(24)((1)/(2))=12

Let be "v" the number of cupcakes that have vanilla icing.

Since the rest will get vanilla icing, we know that:


v=12

User Korinna
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