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2 years ago

11

Can someone explain how to do number 11?

1 answer:

stira [4]2 years ago

8 0

First you rewrite 27 as 3^3 and then you pull the term out from under the radical , assuming real numbers 3+ square root 16 . Then you rewrite it as 3+ square root 4^2 and then you pull out terms assuming they are positive then you add 3+4 and you get 7

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An office store pays a whole price of $120 for a laser printer and sells it for $174. What is the pecent mark up

Advocard [28]

Answer:

its by 54%

Step-by-step explanation:

because it is raising the price by making money by 54%. and that its using the calculator in any way.

8 0

1 year ago

At the beginning of the month a store had a balance of −$554. During the month the store lost another $600. What is the current

musickatia [10]

When subtracting a number from a negative number the number appears to get larger, but in fact only becomes smaller. - 554 - 600 = - $1154

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2 years ago

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Which of the following has a shallower slope than the line 3x-1y=-1 ?

BaLLatris [955]

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2 years ago

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X^2 + 2x + 5 find the zeros

Dvinal [7]

Answer:

Step-by-step explanation:

This is what I got

8 0

2 years ago

In order to remove water from a flooded basement, two pumps, each rated at 40 gallons per minute, are used. After half an hour,

Scrat [10]

Answer:

3600 gallons of water was removed from the basement.

Step-by-step explanation:

Given:

Rate of each pump = 40 gallons/min

We need to find find the number of gallons of water removed from the basement.

Solution:

Now Given:

After half an hour, the one pump burns out.

Now we know that;

1 hour = 60 mins

$\frac12$ hour = $\frac{60}{2}=30\ mins$

Now for 30 mins both the pumps were working and removing the water.

So we can say that;

Water remove for first 30 mins = $40\times2\times30=2400\ gallons$

Also Given:

the second pump finishes removing the water half an hour later.

So we can say that;

Water removed for next 30 mins = $40\times 30\times1 =1200\ gallons$

Now we can say that;

Total water removed from the basement is equal to sum of Water remove for first 30 mins and Water removed for next 30 mins .

framing in equation form we get;

Total water removed from the basement = $2400+1200=3600\ gallons.$

Hence 3600 gallons of water was removed from the basement.

6 0

2 years ago