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3 years ago

10

Your office manager used 45 paperclips for handouts at his presentation from the 450 paperclips available in the stock room. Wha

t percentage of the original number of paperclips did NOT get used?

1 answer:

vova2212 [387]3 years ago

5 0

It would be 90%..... 45/450= 10%.... so there would be 90% not being used.

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4 years ago

student measuring how gasoline prices change records the cost of gas at 10 randomly selected stations in her hometown. One week

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Answer:

We conclude that he used a paired two-sample t-test.

Step-by-step explanation:

We know that the student measuring how gasoline prices change records the cost of gas at 10 randomly selected stations in her hometown. One week later, she records the price again at the same 10 stations.

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3 years ago

A new Outdoor recreation Center is being built in Erie. The perimeter of the rectangular playing field is 456 yards. The length

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Answer:

$P= 456 = 2X +2Y$ (1)

And for this case we know the following condition "The length of the field is 7 yards less than quadruple the width" and we can write this :

$X = 4Y -7$

And replacing into equation (1) we got:

$456= 2(4Y-7) +2Y$

$456 = 8Y -14 +2Y$

$456 = 10Y-14$

Adding 14 in both sides we got:

$456+14 = 10Y$

And dividing 10 on both sides we got:

$Y=\frac{470}{10}= 47$

And then we can solve for X and we got:

$X= 4*47 -7=181$

Step-by-step explanation:

For this case we can set up the following notation:

X represent the lenght

Y represent the width

And since we have a rectangular playing filed the perimeter is given by:

$P= 456 = 2X +2Y$ (1)

And for this case we know the following condition "The length of the field is 7 yards less than quadruple the width" and we can write this :

$X = 4Y -7$

And replacing into equation (1) we got:

$456= 2(4Y-7) +2Y$

$456 = 8Y -14 +2Y$

$456 = 10Y-14$

Adding 14 in both sides we got:

$456+14 = 10Y$

And dividing 10 on both sides we got:

$Y=\frac{470}{10}= 47$

And then we can solve for X and we got:

$X= 4*47 -7=181$

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4 years ago

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Answer:

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Step-by-step explanation:

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