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3 years ago

10

Charles is going campin with his family. His campsites 7/8 miles away. They walk at a steady speed of 1 1/2 mi/hr. How many minu

tes will it take them to get to the campsite?

1 answer:

Elena L [17]3 years ago

5 0

$x-\ travel\ in\ minutes\\\\From\ proportion:\\\\1.5\ \ \ \ -\ \ \ \ 60\\\frac{7}{8}\ \ \ \ \ \ -\ \ \ \ x\\\\1.5x=60\cdot\frac{7}{8}\\\\1.5x=\frac{420}{8}\\\\1.5x=\frac{105}{2}\\\\1.5x=52.5\ \ \ \ \ |:1.5\\\\x=35\ minutes$

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2 years ago

2=5 ; 3=9 ; 4=48 ; 5=220 ; 6=1,350<br> THEN 8 = ?

loris [4]

IF

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3=9 ; 3*5 - 3*2

4=48 ; 4*9 + 4*3

5=220 ; 5*48 - 5*4

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3 years ago

Round to the nearest thousands<br> 3475.6993

Andreyy89

3475.699

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Am I correct?

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3 years ago