I got 6 for my answer, but I'm not 100% sure if I'm right.
6(2x-11)+15=21
12x-66+15=21
12x-51=21
+51 +51
12x=72
----- ----
12 12
x=6
Answer:
135 minutes
Explanation:
36 cupcakes in 45 minutes can be written as

, so to find how long 108 will take, you can find it by equating these two fractions:

=
Simplify by cross division:
divide 45 and 108 by 3 to simplify into this:

=

x = 15
The rate is 3, so 45 • 3 = 135 minutes.
Another way of looking at it is this:
108 ÷ 36 = 3 this is the rate that you need to multiply the amount of time that it takes to make the cupcakes, so:
45 • 3 = 135 minutes.
Answer:
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Step-by-step explanation:
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