C = total number of candy
.4(c) = 8 pieces of candy
Divide c by .4: c= 20
20-8=12
Ed has 12 pieces of candy at home
Answer: 7.5
Form your proportion. Let x be the width of QRST.
Length of ABCD Length of QRST
----------------------- = -------------------------
Width of ABCD Width of QRST
8/5 = 12/x
Solve for x by cross-multiplying.
(8)(x) = (12)(5)
8x = 60
x = 7.5
We have the following:

solving for x

The solution of x is equal to 28, therefore 12 is not a solution of the equation
Answer 67+67=6886
Step-by-step explanation:
Answer: x = 16
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable. :)