Uma wants to buy a video game system for $400. she has $50 and is saving $25 each week. solve the equation 25w + 50 = 400 to find how many weeks w it will take uma to save enough to buy the system.

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)

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!