Daniel is planning to earn money over the summer mowing lawns in the neighborhood to buy a scooter. The scooter he wants costs $2,200. He will be charging $16.0/lawn and estimates his costs to be $2.7/lawn. How many lawns must he mow in order to pay for the scooter entirely through his earnings?

165 lawns

Explanation:

The computation of the number of lawns is shown below:

= The cost of scooter ÷ Profit per lawn

where,

The cost of the scooter is $2,200

And, the profit per lawn is

= Charging per lawn - estimated cost per lawn

= $16 - $2.7

= $13.3

So, the number of lawns is

= $2,200 ÷ $13.30

= 165 lawns

Basically we dividing the cost of scooter by the profit per lawn

the answerr would be 1

u = 30

continuing your method

= +

subtract from both sides

= - thus

= -

= ⇒ u = 30