Answer: x = 4
or x= -2/3 = -0.667
Step-by-step explanation:
3. g(x) = x^2 - 5x + 3
g(-3) = -3^2 - 5(-3) + 3
g(-3) = 9 + 15 + 3
g(-3) = 27 <==
4. 4(7b + 15f - 8f) =
4(7b + 7f) =
28b + 28f <===
5. C = 2.50r + 15
for 5 rolls...r = 5
C = 2.50(5) + 15
C = 12.50 + 15
C = 27.50...its A
Answer:
A haircut costs $31
Coloring hair costs $93
Step-by-step explanation:
h = haircut
c = color
First equation: 1h + 2c = 217
Second equation: 2h + 1c = 155
Solve using elimination:
First, multiply both the equations so that they cancel the h's out:
First equation:
-1(2h + 1c = 155)
-2h - 1c = -155
Second equation:
2(1h + 2c = 217)
2h + 4c = 434
Then, put the equations together, and solve:
2h + 4c = 434
-2h - 1c = -155
3c = 279
c = 93
Find h:
2h + 1c = 155
2h + 1(93) = 155
2h + 93 = 155
2h = 62
h = 31
Hope this helped!
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