math help please on percents?

Question

1: If .4% of a quantity is 2.4, find the total quantity.
24
600
120
66


2: $250 is what percent of $200?
115%
120%
125%
130%


3: If a man sold 175% of his quota and he sold 35 articles, what was his quota?
15
17
20
23


4: What is 250% more than 200?
600
650
675
700


5: What is 30% less than 400?
140
280
340
360


6: Correct to the nearest tenth of a percent, what grade would you receive on 16 correct out of 27 questions?
59.3%
45.9%
50.1%
61.4%


7: The population of a city was 62,500. In ten years it increased 5.4%. What was the population then?
64,235
65,875
67,000
68,250


8: At age 25 a man had saved $4,000. At age 45 his savings were $18,000. What percent had his savings at age 45 increased over his savings at age 25?
450%
350%
275%
325%


9: A man's salary increased from $60 a week to $80 a week. What percent of increase in salary was this?
25%
20%
33 1/3 %
40%


10: A bicycle was reduced from $60 to $48. What percent of decrease was this?
40%
33 1/3%
27.5%
20%

Answer 1

1- 60
2- 125%
3- 20
4- 700
5- 280
6- 59.3%
7- 65,875
8- 450%
9- 33 1/3 %
10- 20%

Answer 2

Set it up as an equation:(is means =)(of means x)
Change the percents into decimals by moving over the (.) two times to the left. (ex: 25% of a number is one fourth of a number, or .25.)
You are trying to get the unknown number (n)by itself to get the answer. To do this, do the reverse operation.(ex. The opposite of multiply(x) is devide(/).)
Here are some examples becuase i don't believe in cheating.

1. .4% of n is 2.4
.004 x n = 2.4
2.4/ .004= 600, the answer.

2. 250 is what percent of 200.
250 = n% x 200
250/ 200= 1.25
move the decimal over to the right two times
125% is the answer

3. quota is the n.
175% of n is 35.
1.75 x n = 35
35/ 1.75 =20
20 is the answer.

4. 250% of 200 is n.
2.5 X 200 = n
You don't have to do the reverse operation because the n is already by itself.
2.5 x 200 = 500
It says "more than 200" so add 200 to it.
500 + 200= 700
700 is the answer

5. says "less than"...so subtract the answer from 400 .

Answer 3

One Question For OP -
1. Now that you " Got The Answers" to your homework, and you'll probably get credit for a correct ( error free) homework assingnment, how will you explain getting all of them correct on your homework, but not knowing how to do a single one during a test?
What if, the teacher were to not only accept correct answers for homework but randomly pick " You" to go to the blackboard and illustrate to the class how you did a randomly chosen homeork problem.
I think, it would be better to post two problems and ask for an explanation on how to do it, rather than post a lot and just get answers. Remember, give a man a fish and he'll eat for the day, teach the man how to fish and he'll eat for life.

Answer 4

1. 600

2. 125%

3. 20

4. 700

5. 280

6. 59.3%

7. 65,875

8. 450%

9. 33 1/3%

10. 20%

There you go!!

Answer 5

1.) 600
2.) 125%
3.) 20
4.) 700
5.) 280
6.) 59.3%
7.) 65,875
8.) 450%
9.) 33 1/3%
10.) 20%

Hope this helps !

Answer 6

1. 600
2.125%
3.20
4.700
5.280
6.59.35
7.65875
8.450%
9.33 1/3%
10.20%

Easy. But I´m not going to explain each one of them...

Answer 7

I will answer 0% of these. Why don't you try to answer a few of them before coming here?