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AlexFokin [52]
3 years ago
8

Sarabi drove 20 mi at 40 mph. How long did she drive?

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0
1/2 of the time

d=st
distance=speed times time
we want to find time
divide both sides by speed
d/s=t

d=20
s=40
20/40=t
1/2=t
this is in hours

she drove for 1/2 hour or 30 mins
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Answer:

  A.  (4, 12)

Step-by-step explanation:

Adding the second equation to twice the first will eliminate y.

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3 years ago
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FromTheMoon [43]

Answer:

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Step-by-step explanation:

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LUCKY_DIMON [66]
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