Answered

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Bryan earns $7.50 per hour working at mcdonalds and $6.00 per hour mowing lawns. Last week he worked 40 hours and earned $282. How many hours did he mow lawns, and how many hours did he work at mcdonalds?

Sagot :

Answer:

12 hr. mowing lawns

28 hr. working at Mc Donalds

Step-by-step explanation:

Let t = time mowing lawns

then 40 - t = time working at McDonalds

7,5(40 - t) + 6t = 282

300 - 7.5t + 6t = 282

-1.5t = -18

t = 12 hr. mowing lawns

40 - t = 40 - 12 = 28 hr. working at Mc Donalds

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