Gabrielle\'s age is three times Mikhail\'s age. The sum of their ages is 20. What is Mikhail\'s age?

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alancraj7
1 year ago

10 response - 0 helps
You can convert this problem into an equation.

3x + x = 20

When simplified, the problem is 4x = 20

You can easily solve for x, which is 5.

Mikhail’s age is 5 years old.

Can I have brainliest?

3x + x = 20

When simplified, the problem is 4x = 20

You can easily solve for x, which is 5.

Mikhail’s age is 5 years old.

Can I have brainliest?

Answer:Mikhail is 5 years old

Step-by-step explanation:Represent each member with a variable.

X= Gabrille

Y=Mikhail

X+Y=20 (sum of their ages is 20)

X=3y (Gabrille is 3 times Mikhails age)

Substitute 3Y into the first equation (simultaneous equation)

. 3y+y=20

. 4y=20 (divide both sides by 4)

y=5

To check your answer.

X+5=20

X=20-5

X=15

15 is 5 times 3.