Each month, a shopkeeper spends 8 x plus 15 dollars on rent and electricity. if she spends 3 x minus 7 dollars on rent, how much does she spend on electricity? use pencil and paper. for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

x <  15.6

Step-by-step explanation:

She spends on rent and electricity

P(x) = 8x + 15

She spends on rent

Q(x) = 3x - 7

She spends on electricity

R(x) = P(x) - Q(x) = (8x + 15) - (3x - 7) = 5x + 22

R(x) = 5x + 22

If   R(x) < $ 100  we get

5x + 22 < 100

⇒  5x < 78

⇒  x <  15.6

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

the answer is 150.6

step-by-step explanation:

you multiply .02 by 30 and get .6.

and then you multiply 5.00 by 30 and get 150.

hope this !