Step-by-step explanation:
Given
y = -3x - 8
Now Comparing it with y = mx + c
So slope (m)
= - 3
The answer is -9 because you have to multiply the two numbers.
Answer:
i think its 9 1/4
Step-by-step explanation:
The answer is A. subtract 12 from both sides of the equation and then divide both sides by 4.
let
d1 = 250 mi the distance that Mattie Evans drove
v1 = the speed of Mattie Evans
d2 = 1300 mi the distance the plane traveled
v2 = the speed of the plane
The speed of the plane was 190 mph faster than the speed of the car:
v2 = v1 + 190
since time = distance/speed and they both traveled the same time we have
d1/v1 = d2/v2
250/v1 = 1300/v2 cross multiply
250v2 = 1300v1 divid eboth sides by 50
5v2 = 26v1
by solving the system of equations:
v2 = v1 + 190
5v2 = 26v1
we find
v1 = 45.24 mph
v2 = 235.24 mph
