Answer:y+7x=8
Step-by-step explanation:y=-7x+8
7x needs to be on the variable side
y+7x=8
X represents the number that would be added to the silver cars.
x/40= 4
X=40x4
x=160
Subtract the given 20 from 160 because 160 is the total number
160-20=140
Therefore 140 would be added to 20 silver cars to get the ratio1:4
Answer:
D) 100% Positve
Step-by-step explanation:
Answer: 1957
Step-by-step explanation:
Y=3x+4 beacause the slope is m and b is the y-intercept
