The elevation of your plot of land is 2 feet below sea level. You add 7 feet of dirt to your land. What is the new elevation of your land?

Answers

Answer 1

Answer:

Answer: 5

Step-by-step explanation: -2+7=5

when the signs are different you subtract and when the signs are the same you add. Then you keep the sign of the bigger number.

Answer 2

Answer: The answer would be nine because you start at 2 and add 7

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two5th graders solved 400,000 divided by 800. Carter said the answer is 500, walk inside the answer is 5,000.

Answers

5000 is the correct carter is wrong because he forgot one zero

500 carter is right not 5000

X has coordinates (a,3a) and Y has coordinates (-5a,0). Find the coordinates of the midpoint of XY

Answers

For this case we have that by definition, the midpoint of a segment is given by:

$XY = (\frac {x1 + x2} {2}, \frac {y1 + y2} {2})$

We have the following ordered pairs:

$(x1, y1) = (a, 3a)\n(x2, y2) = (- 5a, 0)$

Therefore, substituting values we have:

$XY = (\frac {a-5a} {2}, \frac {3a + 0} {2})$

Rewriting we have:

$XY = (\frac {-4a} {2}, \frac {3a} {2})\n$

$XY = (- 2a, \frac {3a} {2})$

Answer:

the coordinates of the midpoint of XY

$XY = (- 2a, \frac {3a} {2})$

Casey and her two friends made $54 selling lemonade in their neighborhood. They will share their money equally. How much money will each friend get? Show your work and explain the answer

Answers

To find out how much money Casey and her two friends will each get, we simply need to divide the total amount of income by the amount of people receiving a part of it

54 / 3 = 18

Casey and her two friends each got $18 from their lemonade stand.
Hope that helped! =)

What percent of 128 is 24

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Wp*128=24 Wp=18 3/4% or 18.75%

Which of the following expressions is a factor of the polynomial x2 + -x-1?

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Answer:

No solution

Step-by-step explanation:

What you have to do is think of two numbers that when times together it equals -1 and when added together it equals -1.

There is no number that can come out to that, so your answer is:

no solution

The regular price of a Space Invader game is $52, but it is on sale. The discount is $13. What percent discount is this

Answers

Answer:

the game is 25 percent off

Step-by-step explanation:

discount = original price * percent off

13 = 52 * p

13/52 = p

1/4 = p

.25 = p

25% =p

That is a 25% discount,

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Jill is playing a game in which a number cube is rolled two times. The sum of the rolls is recorded. What is the sample space for the game? (PLEASE HELP)!!!!!a. 1,2,3,4,5,6, b. 2,3,4,5,6,7,8,9,10,11,12 c. 1,2,3,4,5,6,7,8,9,10,11,12 d. 1,2,3,4,5,6,7,8,9,10,12,15,16,18,20,24,25,30,36 (PLEASE HELP ASAP)