arianajoaneily01
arianajoaneily01 arianajoaneily01
  • 18-12-2020
  • Mathematics
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Mark costs a shadow that is 4-feet long. At the same time, a nearby tree costs a shadow that is 20-feet long. If mark is 6 feet tall, how tall is the tree?

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kqgratz
kqgratz kqgratz
  • 18-12-2020

Answer:

30 feet

Step-by-step explanation:

For this problem we can use ratios 6:4 and x:20. We can also write these ratios as fractions 6/4 and x/20 or 3/2 and x/20. Set the two fractions equal to each other and solve for x:

3/2 = x/20

1.5 = x/20

30 = x

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