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2 years ago

Juan wrapped 2 presents every 16 hours. At that rate, how long, in

Mathematics

2 answers:

maks197457 [2]2 years ago

5 0

Answer:

Since it took Juan 16 hours to wrap 2 presents, it will take Juan 32 hours.

1 present- 8 hours

2 present- 16 hours

3 present- 24 hours

4 present- 32 hours

givi [52]2 years ago

5 0

Answer:

Step-by-step explanation:

4 divided by 2 is 2

2 time 16 is 32

awnser is 32 stop deleting my stuff

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60% of what number is 21

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3 years ago

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4 years ago

Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance b

Ede4ka [16]

Answer:

After 1.7 hours

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1. Calculate the average speed of train B

60mph = 3/4 (s) ⇒ s = 60 (4/3) mph = 80 mph

2. Build a table

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Train Average speed Distance time (distance/average speed)

mph

A 60 x x/60

B 80 240 - x (240 - x) / 80

3. Write the equation

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$\dfrac{x}{60}=\dfrac{240-x}{80}\\ \\ \\ 80x=14,400-60x\\ \\ 80x+60x=14,400\\ \\ 140x=14,400\\ \\ x=14,400/140\\ \\ x=102.85miles$

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3 years ago