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3 years ago

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Which of these two expressions represent the phrase "five plus two times a number"? A. 5n+2n and 2n+5n B. 5+2n and 2+5n C. 2n+5

and 2n-5 D. 5+2n and 2n+5

1 answer:

Allushta [10]3 years ago

3 0

Answer:

It would be D because you are timing 2 by a number which would have n together

Hope this helped

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The population of a city has increased by 36% since it was last measured. If the current population is 51000 , what was the prev

PilotLPTM [1.2K]

So if we have the number after the 36% increase in population, we would want to subtract that 36% from 51000.

36% of 51000 can be found by multiplying 51000 by 0.36 (0.36 is the decimal equivalent of 36%)

51000 x .36 = 18360

So you simply subtract 18360 from 51000, which is 32,640.

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3 years ago

Describe a way to check the correctness of a subtraction answer.

Tamiku [17]

Step-by-step explanation:

Well in general, we can represent subtraction as: $x-y=z$

"z" represents the difference, and it really just represents x with y taken away. So if we were to "give back" this y value, we should get "x".

This means that: $z+y=x$

So one way to check, is adding the value that's being subtracted (y value) and the difference (z value), this should get you the value that is being subtracted from (x value). If you don't get the original value that's being subtracted from (x-value) then you know the answer you got is wrong.

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1 year ago

For the function y = -10x find the matching y-value when x = 3

Alchen [17]

Answer:

y= -30

Step-by-step explanation:

THis is because you substitue 3 for X and then multiply -10 and 3 and a negative times a positive is a negative so -10 times 3 is -30

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3 years ago

Read 2 more answers

In the diagram, FG=34, GH=288, and HJ=256. Is GH tangent to circle F?

Anastaziya [24]

Answer:

No

Step-by-step explanation:

If GH is tangent to circle F, then it forms a right angle with FG. Therefore, triangle FGH would be a right triangle and would satisfy Pythagorean theorem.

34² + 256² = 288²

66692 = 82944

The sides are not a Pythagorean triple, so GH is not tangent to the circle.

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3 years ago

Do) 4. Claudia spends $2.15 a day for lunch. Her cafeteria lunch account has a

Shkiper50 [21]

Answer:

d=48/2.15

Step-by-step explanation:

hope it helps

easy peazy

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3 years ago