Answer:
where is the question
Step-by-step explanation:
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Answer:
#8 - substitution property of equality
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Y=-x+2
2y=x-8
these two lines both go through the point (4,-2)
solve: substitute the y in the second equation with (-x+2):
2(-x+2)=x-8
-2x+4=x-8
add 2x on both sides:
4=3x-8
add 8 on both sides: 12=3x
divide by 3 on both sides: x=4.
find y: y=-x+2=-4+2=-2
the solution is (4,-2)
Answer:
Step-by-step explanation:
<u>The ratio of boys to girls:</u>
<u>If there are a total of 132 boys, then number of girls is:</u>
- 132/g = 11/7
- g = 132*7/11
- g = 84
<u>Total number of students:</u>