An electrician charges $80 an hour for weekday repairs and $120 for nights and weekends. Last week, the electrician earned $4800 for 50 hours of work. Which system of equations can be used to find how many hours were worked on weekdays?
A) x + y = 50; 80x + 120y = 4800
B) x - y = 50; 50x + 120y = 4800
C) x - y = 50; 80x - 120y = 4800
D) x - y = 50; 80x + 120y = 4800

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

you should pay $0.88

what is the image?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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