Teresa needs to save $25.50 to go to the movies this weekend. She currently has $3. If Teresa makes $7.50 an hour babysitting, how many hours does she need to babysit this week?

If we set the amount of hours she needs to babysit as x, his word problem can be shown as:

3 + 7.50x = 25.50

Now we can just solve for x

25.50-3 = 22.50

22.50/7.50 = 3

Therefore she has to babysit 3 hours

Answer: she needs to babysit for 3 hours this week.

Step-by-step explanation:

Let x represent the number of hours that she would babysit in a week.

She currently has $3. If Teresa makes $7.50 an hour babysitting. This means that if she babysits for x hours in a weeks, the total amount of money that she would have saved would be

7.5x + 3

Teresa needs to save $25.50 to go to the movies this weekend. This means that

7.5x + 3 = 25.5

7.5x = 25.5 - 3

7.5x = 22.5

x = 22.5/7.5

x = 3