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3. Express or-a-7
80X-9=7

x = 1/5

Step-by-step explanation:

Step 1: Add 9 to both sides

80x = 16

Step 2: Divide both sides by 80

x = 16/80

Step 3: Simplify by dividing top and bottom by 16

x = 1/5

And we have our final answer!

x = 1/5

Step-by-step explanation:

80x - 9 = 7

Add 9 into both sides.

80x = 7 + 9

80x = 16

Divide 80 into both sides.

x = 16/80

Simplify.

x = 1/5

answer:

c 60% on edg

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)