The two angles are vertically opposite when their vertexs share a common point on a set of two lines that cross.
2x + 8 = 70 Subtract 8 from both sides
2x + 8 - 8 = 70 - 8 Combine
2x = 62 Divide by 2
2x/2 = 62/2
x = 31 <<<<< Answer
Answer:
666 2/3 gallons per minute
Step-by-step explanation:
1 valve: 40,000 wps
60 seconds in 1 minute,
40,000 / 60 = 666 2/3
i have made it in above picture
hope it helps
{9x+3y=-36
y=-3x-21
9x-9x-36=-36
x=0
y=-21
