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2 years ago

PRE-ALGEBRA DUE NOW! PLEASE HELP!

Mathematics

1 answer:

Nata [24]2 years ago

4 0

$\bold{FULL SOLUTION:}$

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There are 27 pupils. There are twice as many boys than girls. how many boys and girls are there

Anna71 [15]

Let x = the numbers of girls
thus
the numbers of boys = 2x
x + 2x = 27
3x = 27
x = 9
2x = 2 . 9 =18
girls = 9 & boys = 18

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3 years ago

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How many solutions does this system have?<br> 7. X = -2

Blizzard [7]

Answer:

One

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XXX

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XXX

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−

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2 years ago

81 millimeters is how many fluid ounces

alexira [117]

81 millimeters = 0.00273894 Fluid Ounces

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3 years ago

I’m not an expert at simplifying, so I need help

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3 years ago

James Harmon pays $850.80 per year for his life insurance. If Mr. Harmon were to pay the premiums monthly, the payments would be

Deffense [45]

Answer:

8.0%

Step-by-step explanation:

We have been given that James Harmon pays $850.80 per year for his life insurance. If Mr. Harmon were to pay the premiums monthly, the payments would be $76.57.

First of all, we will find the amount paid for the year using the monthly rate by multiplying $76.57 by 12 (1 year = 12 months).

$\text{Amount paid for the year using the monthly rate}=\$76.57\times 12$

$\text{Amount paid for the year using the monthly rate}=\$918.84$

Now, we will use percent change formula.

$\text{Percent change}=\frac{\text{Final value}-\text{Initial value}}{\text{Initial value}}\times 100$

$\text{Percent change}=\frac{\$918.84-\$850.80}{\$850.80}\times 100$

$\text{Percent change}=\frac{\$68.04}{\$850.80}\times 100$

$\text{Percent change}=0.0799717912552891\times 100$

$\text{Percent change}=7.99717912552891\%$

$\text{Percent change}\approx 8.0\%$

Therefore, Mr. Harmon is paying 8.0% more for the year using the monthly rate.

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3 years ago