exam Maths Puzzle Numerical Ability

A common mistake when solving equations is the following:
The equation: 2(x - 2) = x + 3
First step in solving: 2x - 2 = x + 3
Write a clear explanation of what error has been made. What could be done to avoid this error?

Read Solution (Total 0)

exam Other Question

I need help with the following

Given U = {18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, A = {21, 23, 25, 27, 29}, and B = {26, 27, 28, 29}. Find A′ U B′.
I just need to know if I've done this right. Bond valuation: 15 yr, $1000 par value pays 8% annual interest. Markep price of the bonds is $,085 and required ror is 10%. What is