Keiko makes necklaces like the one in the picture at the right. She has 19 blue beads
and 13 red beads. How many necklaces can
Keiko make? How many of each color bead
will be left over?

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

ιт ιѕ 6 6/23

step-by-step explanation:

нσρє ι ¢συℓ∂ нєℓρ уσυ συт

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%