Register
If two-thirds of a number decreased by 20 is 40, what is the number?
212k views
5 votes
If two-thirds of a number decreased by 20 is 40, what is the number?

User Yoonghm
by
7.5k points

1 Answer

3 votes
Answer:
The number is: 90

Step-by-step explanation:
Assume that the number is a.
We have two thirds of "a" decreased by 20 is 40
This means that:
(2/3)(a) - 20 = 40
(2/3)a = 20 + 40
(2/3)a = 60
2a = 60*3
2a = 180
a = 180/2
a = 90

Hope this helps :)
User Bjornd
by
7.9k points
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
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
Write words to match the expression. 24- ( 6+3)
Link Copied!