Asked by rachel
solve by substitution.
0.5x+0.25y=36
y+18=16x
0.5x+0.25y=36
y+18=16x
Answers
Answered by
Anonymous
y + 18 = 16 x
y = 16 x - 18
______________
0.5 x + 0.25 y = 36
x / 2 + y / 4 = 36 Multiply both sides with 4
4 x / 2 + 4 y / 4 = 36 4
2 x + y = 144
2 x + 16 x - 18 = 144
18 x = 144 + 18
18 x = 162 Divide both sides with 18
x = 162 / 18
x = 9
y = 16 x -18
y = 16 9 - 18
y = 144 - 18
y = 126
Solutions :
x = 9 , y = 126
Proof :
0.5 x + 0.25 y = 36
x / 2 + y / 4 =
9 / 2 + 126 / 4 =
18 / 4 + 126 / 4 =
144 / 4 = 36
y + 18 = 16x
126 + 18 = 16 9
144 = 144
y = 16 x - 18
______________
0.5 x + 0.25 y = 36
x / 2 + y / 4 = 36 Multiply both sides with 4
4 x / 2 + 4 y / 4 = 36 4
2 x + y = 144
2 x + 16 x - 18 = 144
18 x = 144 + 18
18 x = 162 Divide both sides with 18
x = 162 / 18
x = 9
y = 16 x -18
y = 16 9 - 18
y = 144 - 18
y = 126
Solutions :
x = 9 , y = 126
Proof :
0.5 x + 0.25 y = 36
x / 2 + y / 4 =
9 / 2 + 126 / 4 =
18 / 4 + 126 / 4 =
144 / 4 = 36
y + 18 = 16x
126 + 18 = 16 9
144 = 144
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.