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3 years ago

a 6ft tall man casts a shadow that is 9ft long. at the same time, a tree nearby casts a 48 ft shadow. how tall is the tree

Mathematics

2 answers:

Jlenok [28]3 years ago

5 0

The tree is 45ft tall

aniked [119]3 years ago

3 0

Height of a tree = x

x/48 = 6/9
x = (48*6)/9 = 32 ft ← answer

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This is a typical mixture problem where using a table is the best thing.
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juice B 60-x .95 = .95(60-x)
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The last row gives you a total that you need to use, so do that multiplication to get 45. You now to need to add the last columns together for rows 1 and 2 and set them equal to 45: .7x +.95(60-x) = 45. When you do that math, you'll get that x = 48. This means that you need 48 pints of juice A and 60-48 pints of juice B, which is 12 pints.

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2 years ago

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sineoko [7]

Answer:

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Part b) $T(6)=42\ minutes$

Step-by-step explanation:

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T ---> the time in minutes of the treadmill

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