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Solving Scale Problems Using Proportions

Question 4 • FL-1205040-M/J Grade 7 Mathematics B -GF

What is the correct multiplication of a cross product to solve for the missing dimension?

Answer
A
(3/5)(x) = 12(20)
B
(3/5)(20) = 12(x)
C
20 + 12 = (3/5) + x
D
(3/5) + 20 = 12 + x
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