math percentages help?

Question

21: 275% of a number is what percent more than the number?
275
175
75
135


22: From the weight of beef as sold in the butcher shop, 40% must be subtracted to give the weight when it is roasted and ready to serve. There are 10 people, each of whom is to be served 1/4 pound of roasted beef. What weight should be bought at the shop?
4 1/6 lbs
5 lbs
4 3/4 lbs
5 1/6 lbs


23: In planting wheat a farmer estimates that 90% of the seed will grow. If he needs 500 pounds of wheat that will grow, how much wheat should he plant?
610 lbs
580 1/7 lbs
555 5/9 lbs
532 1/2 lbs


24: In measuring the length of a lot, a surveyor makes an error of 0.2 of a foot. The length correct to the nearest tenth of a foot is 67.4 feet. What percent of error did the surveyor make?
0.3%
0.55%
0.63%
0.7%


25: Mr. Brown owned a house that he had bought for $15,000. He sold it at an increase of 15 percent to Mr. Abbott. Later he bought it back from Mr. Abbott at a decrease of 15 percent of what Mr. Abbott paid. What did Mr. Brown make on these deals?
$384.20
$425.50
$337.50
$355.00

Answer 1

21) 275/100 x - x = 175/100 x (175% more)
175

22) 10pers x 1/4 pounds / 0.6 = 4 1/6 lbs
4 1/6 lbs

23) 500 pounds / 0.9 = 555 5/9 pounds
555 5/9 lbs

24) 0.2 / 67.4 feet x 100% = 0.3%
0.3%

25) $15000 x 1.15 x 0.85 - $15000 = -$337.5
$337.5

Answer 2

Think about what the questions are asking.

25. 15K x 15% = x, then add that to 15K = price house sold for.

price house sold for x 15% = x, then subtract that from price house sold for = what Mr.Abbot paid

then take original price of house minus what Mr.Abbot paid to buy it back, and that is how much Mr. Abbot made on the deals. ☺

Break each question down into parts (as above) and look at what is being asked in each part, and you can figure it out.

Good luck!

Answer 3

21: 175
22: 4 1/6 lbs
23: 555 5/9 lbs
24: 0.3%
25: 337.50

Answer 4

22.4 1/6 lbs
23.555 5/9 lbs
24.0.3%
25.$337.50

too lazy to answer the 1st question lol

Answer 5

you are trying to get us to answer your math home work aren't you ,that is not to smart because all of your answers could be wrong you just need to go to your math teacher and let him/her know that you need extra help with your percentages. I'm not ever going to give up answers and others just might give you the wrong answer you better watch this type of home work help and you are not learning to do the work and the rules to do the work there is no ease way out just ask your teacher for extra help or ask your parents if you could get someone to tutor you in math until you get the understanding of your math.Good Luck!

Answer 6

Dude, seriously, do ur own homework.

I'm 13 and I knew that in like 2 mins.

It's because I'm foreign

Answer 7

1.175%

2.4 1/6 kg

3.555 5/9

4.0.3%

5.$337.50