Question

Shirley has earned $148 doing chores, but she wants to have earned at least $200 by the end of the week. If she does chores every day for the next 7 days and earns the same amount each day, at least how much should she earn doing chores each day?

Answer 1

next 7 days

amount needed-amount now=amount in each day
200-148=52

52 in 7 days
divide by 7
52/7=7.4285
round
7.43

need to earn about $7.43 each day

Answer 2

Shirley earns atleast $7.43 doing chores each day .

Explanation:

As given

Shirley has earned $148 doing chores, but she wants to have earned at least $200 by the end of the week.

If she does chores every day for the next 7 days and earns the same amount each day .

Let us assume that the same amount each day be x .

Equation becomes

Amount Shirley earns + 7 × x ≥ Total amount Shirley wants to earn

Put all the values in the formula

148 + 7x ≥ 200

7x ≥ 200 - 148

7x ≥ 52

`x \geq (52)/(7)`

`x \geq \$7.43\ (Approx)`

Therefore Shirley earns atleast $7.43 doing chores each day .