Giant wooden dominoes weigh 4
7/13 ounces. Hevesh has
a pile of dominoes that weighs 354 ounces. She needs
113 dominoes for a giant city made of dominoes. How
many dominoes are in the pile? Will she have enough to
build the giant city?

they used 313 gallons of paint

2,160 π

step-by-step explanation:

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