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3 years ago

Lilly babysits for $10 per hour. She works for 5 hours. She uses her money to buy a new sweater that cost $20.

Mathematics

2 answers:

Nastasia [14]3 years ago

4 0

She will have 30$ left

Novay_Z [31]3 years ago

4 0

Answer:

30 dollars left

Step-by-step explanation:

If Lily works for 10 dollars per hour and works 5 hours which adds up to 50 dollars then she buys a sweater for 20 so 50 minus 20 is 30 dollars, so Lily has 30 dollars left over.

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The boundary of a park is shaped like a circle. The park has a rectangular playground in the center and 2 square flower beds, on

fiasKO [112]

Answer:

Step-by-step explanation:

Get the perimeter of the each shape and add it all up to get the total fencing material required.

2 square flower beds = 2 x 4a = 8a

1 rectangular play ground = 2l + 2w

total fencing material = 8a + 2l + 2w

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3 years ago

Christopher estimates it will take him half an hour to complete his math homework. He is able to complete it in 25 minutes. What

marin [14]

Answer:

The percent error in his estimate is<u> 16.67%</u>.

Step-by-step explanation:

Given:

Christopher estimates it will take him half an hour to complete his math homework.

He is able to complete it in 25 minutes.

Now, to find the percent error in his estimate.

Time estimates of completing homework = 30 minutes.

Time actual taken to complete homework = 25 minutes.

Error in estimate = Time estimates of completing homework - Time actual taken to complete homework.

Error in estimate = 30 minutes - 25 minutes.

Error in estimate = 5 minutes.

Now, to get the percent error:

$Percent\ error =\frac{Error\ in\ estimate}{Time\ estimates\ of\ completing\ homework} \times 100.$

$Percent\ error=\frac{5}{30} \times 100$

$Percent\ error=\frac{500}{30}$

$Percent\ error=16.67\%.$

Therefore, the percent error in his estimate is 16.67%.

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3 years ago

Which function is equivalent to the inverse of y=sec(x)

Mice21 [21]

Sec^-1 OR arcsec .........

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Rzqust [24]

I do believe that it is the second one I’m not 100% sure but I’m pretty sure it is

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3 years ago

12 - (-3) =<br> what does it equal

erik [133]

Answer:15

Step-by-step explanation:

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