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natima [27]
3 years ago
14

A girl is 6 feet tall and casts a shadow that is 4

Mathematics
2 answers:
Komok [63]3 years ago
7 0

Answer:

60 ft tall

Step-by-step explanation:

<u>tall          |     6       |      x  </u>

<u />

<u>shadow  |     4       |    40  </u>

<u />

4 times 10 = 40

6 times 10 = 60

ExtremeBDS [4]3 years ago
3 0

Answer:

60 ft tall

Step-by-step explanation:

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Two balls A and B rotate along a circular track. Ball A makes 4 full rotations in 120 seconds. Ball B makes 3 full rotation in 6
lara [203]
Find the rate in which both balls make one full rotation around the track.

Ball A:

120 / 4 = 30

It takes 30 seconds for Ball A to make a full rotation.

Ball B:

60 / 3 = 20

It takes 20 seconds for Ball B to make a full rotation.

Find the least common multiple of 20 and 30 to find the time at which they'll meet.

Multiples of 20: {20,40,60}
Multiples of 30: {30,60}

60 is the least common multiple of both 20 and 30.

The balls will meet again at 60 seconds.
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(7z^3+42z^2-15z+1)- (36z^2+12z-21)​
My name is Ann [436]

Answer:

7z^3+6z^2-27z+22

Step-by-step explanation:

The given question is of subtraction:

So,

(7z^3+42z^2-15z+1)- (36z^2+12z-21)​

=7z^3+42z^2-15z+1-36z^2-12z+21

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7z^3+6z^2-27z+22 ..

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