Question 140425
A) It takes r cm of ribbon to make a bow. We have s meters of ribbon. How many bows can we make?
:
it should be apparent that you would divide the amt of ribbon you have, by the amt it takes to make each ribbon
Let no. of ribbons made = A
then
A = {{{s/r}}}
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B) 20% of 3x+12=P.
:
20% = .2, therefore:
.2(3x+ 12) = P
Multiply both terms by .2
.6x + 2.4 = P
:
 What is 120% of 5x+20? 
120 = 1.2
1.2(5x = 20) = 6x + 24