2x+18=30
-18. -18
2x = 12/2
x=6
Answer:
77
Step-by-step explanation:
area triangle=half*base*height
14*11/2
154/2=77
Answer:
B
Step-by-step explanation:
I think
I think
The two equations are vertical angles, which mean they are equal.
Set each equation to equal each other and solve for x.
3x-3 = 6(x-10)
Simplify the right side:
3x-3 = 6x-60
Subtract 3x from each side:
-3 = 3x - 60
Add 60 to each side:
57 = 3x
Divide both sides by 3:
x = 57 / 3
x = 19
45 divided by 5 is 9, so it takes 9 minutes to cover 1 mile.
9 x 2 = 18.
