Grade 8 math help please
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Grade 8 math help please

[From: ] [author: ] [Date: 11-09-30] [Hit: ]
if youu could tell me the answer and steps on hooow to get the answerr and whyy that would be great and soo helpful!5.a) the rural population of Quebec is about 1 650 000.this represents 22% of the population of Quebec. Estimate the population of Quebec.b)the population of Yukon Territory is about 31 400.......
Helloo:)
INeeed some help withh math. its on percentss and stuff.

if youu could tell me the answer and steps on hooow to get the answerr and whyy that would be great and soo helpful! thaankyouu:) +youu only have to answer 1 questionnn if you want<3:)

5.a) the rural population of Quebec is about 1 650 000.
this represents 22% of the population of Quebec. Estimate the population of Quebec.

b) the population of Yukon Territory is about 31 400. Of these, 18 840 live in urban areas.
what percent of the population of Yukon Territory lives in rural areas?

6. a fish tank contains 24 L of water. Water is added to increase the volume by 12.5%.
what is the new volume of water in the tank?

7. thirty-six percent of a number is 63. Find 124% of the number.


8. a factory produces 900 iteams per week at a unit cost of $75. new equipment is installed that increases the productivity by 12% and reduces the production costs by 16%.

a) what is the new production rate?

b) what is the new unit cost?

once again. for answering anyyyy of these questions thanks so much!!<3:)

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5a. You would set up the proportion is/of=percent/100 and fill in the information you have. Right now, you have is (1,650,000), percent (22) and total (100). You are solving for of. So you need to cross multiply to get 22x=165000000. After, you would divide to get your final answer of 7,500,000.

5b. You would divide 18,840 by 31,400 and that should get you the answer of 0.6, which you can convert into 60%.

6. First, you would find 12.5% of 24, which is 3. You would then add that to 24 to get 27.

7. First, you need to find what the number is. You can do this again by setting up the same proportion as 5a. You have is (63) and percent (36). You are solving for of. You should get 36x=6300 (just so you know, x represents of). Then you would divide by 36 to get 175.

8a. For this part, entirely ignore the production cost. They are asking for the rate, so you need to find 12% of 900 and add that together to get 1008.

b. 87 would be your answer because you would need to add together 75 and 12% of 75.

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okay, so this is how you find all of those percent problems.

take 5.a) for example. make 22% a decimal so that you can divide it. 22 divided by 100 (22%out of 100)
Then, .22x1 650 000 will represent how much rural population.
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