Question

It took Michael 58 minutes last night to do three homework assignments.

The second homework assignment took twice as long as the first.
The third homework assignment took 8 minutes longer than the second.

How long did Michael spend on the first homework assignment?

Answer 1

10 minutes

Explanation:

We can represent the time it took him to do the first assignment by X.

The second assignment took twice as long and can be written as 2x.

The third took him 8 more minutes than the second. This can be written as 2x + 8.

It took him 58 minutes in total.

So, we can write the following equation.

`x+2x+2x+8 = 58\\5x+8=58\\5x=50\\x=10`

Micheal spent 10 minutes on the first assignment.