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denis-greek [22]
3 years ago
11

Um marceneiro está pregando uma tábua em um telhado, por descuido deixa-se cair o martelo de uma altura de 8 m gastando 1s para

tocar o solo. Determine a velocidade com que o martelo saiu da mão do marceneiro.
Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0
Aroisrigj;rnuleheuiothgrtiehuigrtheukbnufgsubrsrtnhb THANKS FOR POINTS
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Answer:

B

Step-by-step explanation:

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It will take Adam four hours to drive to Disney Park, and 2.5 times less time if driving 45 mph faster. What is the distance Ada
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Answer:

120 miles

Step-by-step explanation:

we know that

The speed is equal to the distance divided by the time

Let

s------> the speed in mph

d-----> the distance in miles

t -----> the time in hours

s=d/t

solve for the distance

d=s*t

<em>It will take Adam four hours to drive to Disney Park</em>

s=x mph

t=4 h

substitute

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<em>It will take Adam 2.5 times less time if driving 45 mph faster</em>

so

s=(x+45) mph

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substitute

d=1.6(x+45) -----> equation B

equate equation A and equation B

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x=30 mph

Find the distance d

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3 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

Hope this helps have a great day:)

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