Beth has made 12 cupcakes.This is 30% of the cupcakes she must make.How many cupcakes must she make?
2 answers:
12/3 = 4 30/3 =10% (4cupcakes is 10%) 4x10 = 40 10x10= 100 (40 cupcakes is 100%)
12 cupcakes ------------ 30% x (cupcakes) ------------- 100% 12 cupcakes ----------------- 0,3 x (cupcakes) --------------------- 1 0,3*x=12*1 0,3x=12 /:0,3 x= 12 : 0,3 x=40 She must make 40 cupcakes.
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