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yaroslaw [1]
3 years ago
8

Tonya is twice Kevin's age.

Mathematics
2 answers:
Luden [163]3 years ago
8 0

Hi there, Kevin's age would be C. 7. This is because Tonya right now is 14. 7 is half of 14.


hichkok12 [17]3 years ago
4 0

For this case we have the following variables:


T: Tonya's age


K: Kevin's age


If Tonya is twice Kevin's age we have:


T = 2K

In three years Tonya will have 17, it means:


T +3=17

We have a system of two equations with two unknowns:

T=2K

T+3=17

From the second equation we have:T = 17-3 = 14

Substituting T = 14 in the first equation we have:


14 = 2K

Clearing K:


\frac{14}{2}=K

So, Kevin is 7 years old


Answer:


7 years


Option C


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