Astudent thinks that (1, 2) is a solution to y = 2x - 3. while checking the solution, the student gets 1 = 2(2) -3. what error did the student make when entering the values of x and y?

step-by-step explanation:

duck you

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15