Register
Tommy is twice as old as his younger sister.The sum of the siblings' ages is 21. Which equation can be used to determine the age of Tommy's younger sister?
165k views
2 votes
Tommy is twice as old as his younger sister.The sum of the siblings' ages is 21. Which equation can be used to determine the age of Tommy's younger sister?

User Venky Viswanath
by
8.6k points

2 Answers

4 votes
Get all the ages back to gather than list the least to greatest one your done with that fine he least and multiply it by 2
User TompaLompa
by
8.2k points
3 votes
I think its 14 because there is few siblings . 21 divided by those few is 7 , and you double 7 it makes 14. So, I believe the answer is 14. Good luck ! 
User Gustavo Carvalho
by
8.0k points
← Prev Question Next Question →

Related questions

User Welah
asked Jun 14, 2023 168k views
Tommy's age is 5 years younger than Jack's age. The sum of their ages is 33. How old is Tommy?
Welah asked Jun 14, 2023
by Welah
7.6k points
2 answers
1 vote
168k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Link Copied!