Question

Diragio Lawn Care cuts 42 lawns every week. Each lawn uses

3 of a tank of gas when it is cut (on average).


Part a- if the lawnmower had no gas at the start of the week, how many times would it have to be completely filled during the week? Show your work (explain)


Part b-The cost for a full tank of gas in the lawnmower is $20. How much does it cost (in lawnmower fuel only) to mow one average lawn? Show your work (explain)

Answer 1

a. 8 times

b. $3.75

Explanation:

Diragio Lawn Care cuts 42 lawns every week. Every lawn uses
`(3)/(16)` of a tank of gas when it is cut (on average).

42 *
`(3)/(16)` (of a tank of gas per lawn) =
`(126)/(16) =(63)/(8) = 7 (7)/(8)` gallons per 42 lawns

part a. it would have to be completely filled up 8 times during the week. having
`7(7)/(8)` gallons of gas in your tank means that you'd have to fill your tank up 8 times.

part b. it costs $20 for a full tank of gas

`(3)/(16) * 20 = 3.75`

$3.75 to mow one lawn on average