X + 17 +3x -15
x +3x = 4x
17-15 = 2
which becomes 4x +2 so it is true
Answer:
1st box - 8
2nd box - square root 7 (subtract whole numbers only)
3rd box - 1/2 (there is an imaginary 1, so divide and leave the sqrt alone)
4th box - 20 (multiply the square roots then get 25 then sqare root it to get 5 then multiply by 5)
Step-by-step explanation:
Answer: 24
Step-by-step explanation: 180-114=66
66+90=156
180-156=24
Answer:
69.6 miles per hour
Step-by-step explanation:
Length of the skid marks = 242 feet
The formula used for the velocity is

where, L is the length of skid marks in feet and the velocity obtain has the units of miles per hour.
By substituting the value

v = 69.6 miles per hour
Thus, the speed of the car at the time of accident is 69.6 miles per hour.