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Taryn mowed 9 lawns in 7.5 hers and received $112.50. Alastair mowed 7 lawns in 5 hrs, and received122.50. How much did Taryn charge to now the lawn, and how much did Alastair charge?? If they both want to earn an additional $735 dollars each, how many additional hours will each spend mowing lawns? Explain.

Sagot :

apologiabiology
so to find the number of dollars per lawn, we divide the number of lawns by the number of monies each got so

taryn mowed 9 and got 112.5 so 112.5/9= how much per lawn=12.5 per lawn
taryn charges 12.5 per lawn

alistair mowed 7 lawns and got 122.5 so 122.5/7= how much per lawn=17.5 per lawn
alistair charges 17.5 per lawn


so taryn mowed 9  lawns in 7.5 hours and got 112.5 or 112.5 per 7.5 hours
to find how much per hour you divide 112.5 by 7.5 and get 15 dollars per hour
t=15 per hour
so we want to find out how many more hours t has to work to earn 735 more we just divide 735 by the rate (15) and find the number of hours so 735/15=49
t has to work 49 more hours to earn 735 more


Alistar=5 hours and 122.5 so 122.5/5=how much per hour=24.5
a=24.5 per hour
so we divide 735 by the rate (24.5) and get the number of hours
735/24.5=30
a has to work 30 more hours to earn 735 more


how much
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