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3 years ago

Gabrielle's age is two times Mikhail's age. The sum of their ages is 84. What is Mikhail's age?

2 answers:

7 0

Let x be Gabrielle’s age
Let y be Mikhail’s age
X=2y and x+y=84 so...
X=2y and x=84-y so by substitution of x,
2y=84-y
3y=84
Y=28

So Mikhail is 28
And Gabrielle is 56

Dvinal [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Mikhail's age:x

Gabrielle's age:2x

x+2x=84

3x=84

x=84÷3

x=28

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$- \dfrac{4}{3} x - 6 = -26$

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//Multiply by -1 on both sides:
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Divide by 4 on both sides:
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-----------------------------------------
Answer: x = 15 (Answer C)
-----------------------------------------

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3 years ago

Read 2 more answers