Solve by making a proportion.
How much does 3.25m of silk ribbon cost if 0.8m costs $5.60?
1 answer:
Answer:
Step-by-step explanation:
Direct proportion
0.8 : 3.25 = 5.60: x
Product of Means = 3.25 * 5.60
Product of extremes =0.8*x
0.8*x=3.25*5.60
x = 3.25 * 5.60 / 0.8 = 3.25*56/8
x =3.25*7
x=$ 22.75
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