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2 years ago

18 is 30% of what number? Enter your answer in the box.

1 answer:

4 0

Call the number : x

18 is 30% of x => x : 0.3 = 18

x : 3/10 = 18 => (10/3)x = 18
x = 18 : 10/3 = 54/10 = 27/5

Recheck : 27/5 :3/10 = 270/15 = 18

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Write the simplified form of the following expression ?. 2x^2y+3x^2+4y+3x^2y+2y

yaroslaw [1]

To answer the question, combine the terms having the same nature of variables in the given above,
(2x²y + 3x²y) + 3x² + (4y + 2y)
The simplification of the expression leads to the answer,
5x²y + 3x² + 6y

7 0

3 years ago

List the possible rational roots and actual rational roots for the equation x^3-2x^2+x+18=0

serg [7]

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2 years ago

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In 2015 there was a population of 155 opossums on and around the Gunn campus. The per capita birth rate in 2015 was 0.11/year an

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Answer: 0.02 per year

Step-by-step explanation:

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7 0

2 years ago

Solve for x <br> 2x+16 X+16

nydimaria [60]

Answer:

2x(16)+16(16)

32x+256

32x/32=256/32

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3 years ago

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Hi, I have no clue how to do proportions and can you explain how to do this? If you can't that's alright.

bekas [8.4K]

___________________

Please, give me some minutes to take over your question

______________________________________

Rate = miles / time

8/t = 7/ 35

Dividing by 7

8/t = 7/ 35

8/ 7t = 1/ 35

Multiplying by t

8/7 = t/35

_____________

Options

1) 8/t = 35/ 7 (False, t/8 = 35/ 7 )

2) t/8 = 7/ 35 (False, t/8 = 35/ 7 )

3) 8/7 = t/ 35 (TRUE)

4) 7/8 = t/35 (False, 8/7 = t/ 35 )

__________________

Answer

3) 8/7 = t/ 35 (TRUE)

4 0

1 year ago