Four plumbers each charge a flat fee plus an hourly rate for repair visits. The table shows their total costs for repairs that required various amounts of time.

Total Cost of Repairs

Hours needed for repair

Cost for plumber

A

Cost for plumber

B

Cost for plumber

C

Cost for plumber

D

1

$35

$55

$50

$50

2

$65

$75

$75

$60

3

$95

$95

$100

$70

Which plumber charges the greatest hourly rate?

plumber A

plumber B

plumber C

plumber D

Question

Mathematics

Ingrid Gibson

12 August, 13:48

Four plumbers each charge a flat fee plus an hourly rate for repair visits. The table shows their total costs for repairs that required various amounts of time.

Total Cost of Repairs

Hours needed for repair

Cost for plumber

A

Cost for plumber

B

Cost for plumber

C

Cost for plumber

D

1

$35

$55

$50

$50

2

$65

$75

$75

$60

3

$95

$95

$100

$70

Which plumber charges the greatest hourly rate?

plumber A

plumber B

plumber C

plumber D

+2

Answers (1)

Know the Answer?

Gia Orozco · Answer 1

Plumber A $5 flat rate $30/hour

Plumber B $35 flat rate $20/hour

Plumber C $25 flat rate $25/hour

Plumber D $40 flat rate $10/hour

So plumber A has the greatest hourly rate