151k views
9 votes
1. Michelle charges $15 per hour

to babysit and $10 for gas. She
received more than $100
yesterday. How many hours did
she babysit?

User Gourav B
by
3.9k points

2 Answers

4 votes

Answer:

A

Step-by-step explanation:

I just did it in EDG

User Mars J
by
3.3k points
14 votes

Final answer:

To find out how many hours Michelle babysat, we need to subtract the gas fee from the total amount she received and then divide the remaining amount by her hourly rate. Michelle babysat for more than 8 hours yesterday.

Step-by-step explanation:

To find out how many hours Michelle babysat, we need to subtract the gas fee from the total amount she received and then divide the remaining amount by her hourly rate. Let's assume Michelle received $x yesterday.

After deducting $10 for gas, she would have received $x - $10 for babysitting. We know that the total amount she received is more than $100, so we can write the inequality: $x - $10 > $100.

Now, let's solve the inequality for $x:

  1. Add $10 to both sides: $x > $100 + $10.
  2. Simplify: $x > $110.

So, Michelle received more than $110. To find out how many hours she babysat, we can divide the remaining amount (total amount - gas fee) by her hourly rate:

  1. Let's use $x as the total amount she received: $x - $10 > $110.
  2. Subtract $10 from both sides: $x > $120.
  3. Divide both sides by $15: $x/$15 > $120/$15.
  4. Simplify: x/15 > 8.

So, Michelle babysat for more than 8 hours yesterday.

User Marco Costa
by
2.9k points