Question

Chad complained to his friend that he had five equations to solve for homework. Are all of the homework problems equations? Justify your answer.

Answer 1

Chad's claim is incorrect

Explanation:

The homework problems that complete the question are:

`3x^2.2x^4`

`5 - 2x = 3x`

`3(2x + 7)`

`7x^2 +2x -3x^2 -9`

`(2)/(3) = (x+2)/(6)`

Required

Is Char right?

From the homework problems above, there are 5 mathematical problems

So:

Chad's claim that he had 5 equations.

A mathematical expression is an equation if it has an = sign

So for Chad's claim to be correct; at least 4 of the mathematical problems must have an = sign

By the explanation done above, we have the following observations

`3x^2.2x^4` -> No Equation

`5 - 2x = 3x` -> Equation

`3(2x + 7)` -> No Equation

`7x^2 +2x -3x^2 -9` -> No Equation

`(2)/(3) = (x+2)/(6)` -> Equation

Apparently, only 2 of the 5 problems are equation.

Hence, Chad's claim is incorrect.