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2 votes
Stephanie is x years old. Tobi is twice as old as Stephanie. Ulrika is 3 years younger than Tobi. The sum of all their ages is 52 years. Work out the value of x.

User Siham
by
7.2k points

2 Answers

4 votes

Answer:


x=11

Explanation:

Stephanie is
x years old.

Tobie is
2x years old.

Ulrika is
2x-3 years old.


x+2x+2x-3=52


5x-3=52


5x=52+3


5x=55


(5x)/(5) =(55)/(5)


x=11

User Afreen
by
8.5k points
5 votes

Answer:


x = 11

Explanation:

Stephanie = x

Tobi = 2x

Ulrika = 2x-3


x + 2x + 2x + 3 = 52 \\ 5x - 3 = 52 \\ 5x = 52 + 3 \\ 5x =55 \\ (5x)/(5) = (55)/(5) \\ x = 11

hope this helps

User Aymand Osanes
by
9.1k points
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