Carolyn makes and sells necklaces. the material to make each necklace costs$3.20 last week she made 12 necklaces and wants to make a total profit of $54using the equation 12(x-3.20) = 54 carolyn determined that she will make a profit of$7.70 on each necklace. which error did carolyn make?

step-by-step explanation:

for the free

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

c.

step-by-step explanation:

simple you would first have to get   a negative number where as 1 to be multiplied by 24 and then you would have to multiply 6 time 4 and then repeat that process until you reach your term