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3 years ago

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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