Register
The average height of three students is 68 inches. If two of the students have heights of 70 inches and 72 inches respectively, then what is the height (in inches) of the third student?
12.4k views
0 votes
The average height of three students is 68 inches. If two of the students have heights of 70 inches and 72 inches respectively, then what is the height (in inches) of the third student?

User Fady Mohamed Othman
by
7.3k points

2 Answers

4 votes
Write the following equation:


(70+72+x)/(3)=68\\ \\ 142+x=3*68\\ \\ 142+x=204\\ \\ x=204-142\\ \\ x=62 \ in
User Dsolimano
by
6.8k points
6 votes
It's 62 inches

70+72+62= 204/3= 68
User Ahmed Elashker
by
7.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.7m questions

11.3m 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!