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3 years ago

7. If the perimeter of a square is 14g +28 inches, what is the length, in inches, of each side of

Mathematics

1 answer:

AleksandrR [38]3 years ago

5 0

Answer:

3.5x+7

Step-by-step explanation:

divide your coeeficients by 4

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Use signed numbers to solve. A helicopter descended 1200 feet, rose 800 feet, and then descended 450 feet. What was the net gain

sergey [27]

The rise or an increase in altitude is represented by positive sign and a decend or decrease in altitude is represented by negative sign.

First the helicopter descended 1200 feet. So the change in altitude will be -1200 feet.

Then the helicopter rose by 800 feet. So the change in altitude will be 800 feet.

Finally the helicopter descended by 450 feet. So the change in altitude will be -450 feet.

The net change in altitude will be the sum of all the above 3 changes.
Change in altitude = -1200 + 800 - 450 = -850 feet

The negative sign indicates a descend i.e. loss in altitude. So the net change in altitude was a loss of 850 feet.

3 0

3 years ago

Order the set of numbers from least to greatest 64 8 1/7 8.14 15/2

Marianna [84]

Answer:

Step-by-step explanation:

1/7 15/2 8 8.14 64

4 0

3 years ago

With the drain open, a pool loses water at a rate of 9 gallons per minute. At that rate, how long will it take to drain 486 gall

Snezhnost [94]

divide 486 by 9 = 54

it would take about 54 minutes

8 0

3 years ago

What is -2.4x +3.8x-x<br>

maksim [4K]

The answer is .4x because -3.4x+3.8x

4 0

3 years ago

Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10 from e

serious [3.7K]

Answer:

$1200.

Step-by-step explanation:

We have been given that Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of $10 from each of the subscribers to her website.

First of all we will find the number of subscribers for this month.

$\text{Total number of subscribers this month}=100+30-10$

$\text{Total number of subscribers this month}=130-10=120$

Now let us multiply number of total subscribers of this month by 10 to find the amount Kiersten will earn by her online business.

$\text{Kiersten's earnings this month from online business}=120*10$

$\text{Kiersten's earnings this month from online business}=1200$

Therefore, Kiersten will earn $1200 this month by her online business.

8 0

3 years ago