Answer:
The value of n = 12
Step-by-step explanation:
Given the points
The slope formula
m = y₂-y₁ / x₂ - x₁


Given that the slope = m = 6
Thus, substituting the value
6 = n/2
n = 6 × 2
= 12
Thus, the value of n = 12
Setup
45t = 40t + 60
5t = 60
t = 12
car A = 45 * 12 = 540 mi
car B = 40 * 12 = 480 mi
Answer:
4
Step-by-step explanation:
3x-5=7x-21
3x-7x=5-21
-4x=-16 ( divide by -4 both sides)
x= 4