Verified answer

• Problem:

Susana work 20 hrs at her job last week. This week she work 35 hrs. In term of percent, how much more did she work this week than last week?

• Solution:

We can relate the given problem to the lesson about base, percentage and rate.

20 hours will be our base, it is whole and represents a hundred percent. Then 35 hours will be our percentage. We're tasked to find the rate.

Let's use the formula:

Let x be the unknown quantity.

Expressing 1.75 in percent only means that you need to multiply the given by 100. Thus, you'll have 175%.

• Answer:

Susana worked 175% more this week compared to his work last week.