This is simple you just need to think what minus or plus the variable in each equation (letter that represents an unknown number) equals what the equations do
No. 19 X= -8
No.20 R=10
No.21 X=0
No.22 B=7
No.23 V=-4
No.24 N=10
No.25 X=7
No.26 K=4
No.27 N=-4
No.28 X=-7
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
To solve an equation for a particular variable, we can perform the same actions we did when solving equations that only had one variable. We can add the same number to both sides, multiply both sides by the same number, etc.
Total miles:350+150=500
Total hours:4+3=7
Avg speed:500/7=71.429 mph
Since Y is the centroid then the larger piece of the median is 2 times that of the smaller piece
10 = 2*(2x - 3)
10 = 4x - 6
16 = 4x
x = 4
