Answer:
x = 9, x = -9
alternatively:
x = {9, -9}
Step-by-step explanation:
how absolute value works is you split it into 2 equations:
9x = 81, and 9x = -81
9x = 81
x = 81/9
x = 9
9x = -81
x = -81/9
x = -9
The question gives you 3.5 hours for the first one, $14 for rental(which you solved in the previous problem) for the second one, + $7(also solved in previous problem) for the third one. Solving the equation will give you 56 for the fourth blank. Solving and dividing by 2, you get 28 for the fifth blank.
74 batteries will be what she has total for the school project.
Answer:
30%
Step-by-step explanation:
.5 * .6 = .3