knightkita95 knightkita95

22-10-2019
Mathematics

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On new years Eve, the times square ball is lowered 47 feet every 20 seconds. How long does it take for the ball to be lowered 141 feet?

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Josh011 Josh011

22-10-2019

Answer:

60 seconds

Step-by-step explanation:

All you have to do is cross multiply and isolate x.

[tex] \frac{47}{20} \times \frac{141}{x} [/tex]

When you cross multiply, you get

[tex]47x = 2820[/tex]

To isolate x, just divide both sides by 47

[tex]x = 60 \: sec[/tex]

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