The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that rela
tes x and y.
y=72; x=3
2 answers:
Y/X=? Basically saying that 72 divided by 3 is what
y = kx
Replace y and x to solve for k:
72 = 3k
Divide both sides by 3:
k = 24
Now replace k with 24:
y = 24x
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192 = total beads
necklace + bracelet = 192
Let x equal the number of beads
bracelet = 5x
necklace = x
5x + x = 192
6x = 192
x = 32
It takes 32 beads to make a necklace
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