Two trains leave stations 306 miles apart at the same time traveling toward each other one is traveling at 90 mph the other at 80 mph how long before they meet

They will meet in 1.8 hours.

Step-by-step explanation:

Given that, distance between trains = 306 miles

Let they take time to meet each other.

Speed of first train = 90 mph

Speed of second train = 80 mph

Let distance traveled by first train = miles

Formula for distance:

Distance traveled by first train,

Let distance traveled by first train = miles

Formula for distance:

Distance traveled by first train,

Total distance traveled is 306 miles.

i.e.

They will meet in 1.8 hours.

b. x + 1

step-by-step explanation:

i'am smart

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)