the cost of fabric varies directly with the amount of fabric purchased. if 1 2/3 yards of fabric cost 10.00 how much would 4 1/2 yards cost?

Question

anonymous · Answer

Varies directly means y = kx    you solve for k   and then use it in what you are trying to find.

anonymous · Answer

cf = cost of fabric
fp = fabric purchased.

cf = k times fp
or

y = kx

anonymous · Answer

10.00 = k(1  2/3)          1   2/3 is   5/3
10.00 = k(5/3)             multiply both sides by 3/5
3/5(10.00) = k(5/3)(3/5)
6 = k

anonymous · Answer

Now you start over.
y = kx          k is 6 so
y = 6x

anonymous · Answer

You are trying to find the cost which is y

y = 6(4.5)               4 1/2 yards.
y = $27.00

anonymous · Answer

oh my gosh thankkkkkkkkk you so much :) that helped a lot!