This student worked out the system of equation below using the substitution method. The student made a mistake. What mistake was made in the following problem below?
Solve: -16x +2y=-2
y=8r-1
Student Work:
-16x+2(8x-1)=-2
-16x +16x-2=-2
Or -2=-2
+2 +2.
Ox=0
0 0
x=0
y=80)-1
y=0-1
y=-1
(0-1)

step-by-step explanation: 4 cause 2+2=4

they disappear if your absent from to long. i found out that the hard way.

step-by-step explanation:

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your answer is  

a.

5

step-by-step explanation:

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm