Maths homework help please!?!?!?!?

Julie, good news, percentages are the EASIEST!

Percent literally means, "per one hundred." So 2% means 2 per 100. The fraction is 2/100, or reduced to 1/50.

Again, % means "per 100." To change a fraction INTO a percent, multiply it by 100.

7/10 x 100 = .70, which = 70 %

2/5 X 100 = .40, which = 40%

38/50 X 100 = .76, which = 76%

You do these two:

13/20 x 100 = ??, which = ??%

8/25 x 100 = ??, which = ??%

Elmer's made 17 OUT OF 20. Or, 17/20, multiply his score times 100 to find his score.

17/20 x 100 = ??, which = ??%

Just remember, YOU ARE ALWAYS GOING TO A PERCENTAGE, OR COMING FROM A PERCENTAGE. YOU CAN NEVER USE PERCENTAGES IN MATHEMATICAL OPERATIONS.

Have fun and good luck!

a million) 4.9 + 4/17 = 4.ninety + 0.23 = 5.13 2) a million/2 + a million/2 = 2/2 = a million 3) 4/9 + a million/3 = 4/9 + 3/9 = 7/9 = 0.seventy seven 4) a million/2 - 4/17 = 9/34 17/34 - 8/34 = 9/34 9/34 = 9/34 ==> maximum suitable 5) 5/6 - 5/17 = 0.80 3 - 0.29 = 0.fifty 4 6) a million/2 - 3/11 = 5.5/11 - 3/11 = 2.5/11 = 0.227 7) 5/7 - 3/13 = 0.seventy one - 0.23 = 0.40 8 8) a million/2 x 3/13 = 3/26 (a million x 3) / (2 x 13) = 3/26 3 / 26 = 3/26 ==> maximum suitable 9) a million/2 x 4/11 = (a million x 4) / (2 x 11) = 4 / 22 = 2/11 10) 4/7 x 5/19 = (4 x 5) / (7 x 19) = 20 / 40 5 = 4/9 11) a million/2 x 5/12 = (a million x 5) / (2 x 12) = 5 / 24 12) 5/8 / (5/13) = a million 5/8 5/8 x 13/5 = a million + 5/8 (5 x 13) / (8 x 5) = 8/8 + 5/8 sixty 5 / 40 = 13/8 13 / 8 = 13/8 ==> maximum suitable 13) 5/7 / (2/7) = 5/7 x 7/2 = (5 x 7) / (7 x 2) = 35 / 14 14) 2/3 / (a million/4) = 2/3 x 4 = 8 / 3 15) a million/2 / (2/9) = a million/2 x 9/2 = 9 / (2 x 2) = 9 / 4 on occasion, while we've a fragment it is extra ideal if we write it as a decimal (by way of means of dividing the numerator with the denominator). yet on occasion it is likewise a extra ideal concept to paintings in basic terms with the numerators of the fractions (in the event that they have the comparable denominator). additionally, understand that when dividing fractions you're certainly multiplying the fraction with the aid of the reciprocal of the different one. occasion: 2/9 divided with the aid of 5/8 ==> 2/9 / (5/8) divided (/) with the aid of 5/8 ==> circumstances (x) 8/5 (reciprocal of 5/8) 2/9 / (5/8) = 2/9 x 8/5 = (2 x 8) / (9 x 5) = sixteen / 40 5 observe: If the fraction could be simplified, do it. subsequently sixteen and 40 5 can not be simplified yet they may be provided as a decimal (sixteen/40 5 = 0.35). wish this helped and solid success! :)

Hey, whatever you do, do NOT listen to ANY of Sabrina G's answers...math genius - yeah right!!

1 / 50 of the semi-skimmed milk is fat

Others.....

7/10 = 70%

2/5 = 40%

3/25 = 12%

38/50 = 76%

13/20 = 65%

8/25 = 32%

and if you scored 17 / 20...you'd have 85%

2%=2/100=1/50

1/50 of semi skimmed milk is fat

7/10=70%

2/5=40%

3/25=12%

38/50=76%

13/20=65%

8/25=32%

17 out of 20=17/20=85%

A percentage is usually out of a 100 so 2% means 2/100 which can be simplified to 1/50.

7/10 ... change that so that it is out of a 100, which makes it 70/100 which is 70%. (You need to multiply the 10 by 10 to get 100 so you need to multiply the 7 by 10).

2/5 ... (multiplying 5 by 20 gives 100 so you multiply 2 by 20) 40/100 ... 40%

3/25 ... 12/100 ... 12%

38/50 ... 76%

13/20 ... 65%

8/25 ... 40%

17/20 ... 85%

2o% of the milk is fat. The other fractions that need to be put in prectentages are 7 over 10 (70%), 2 over 5 (20%), 3 over 25 (15%), 38 over 50 (38%),13 over 20 (13%),8 over 25 (24%) and 17 out of 20 is 17%

2% = 2/100 = 1/50

7/10 = 70%

2/5 = 40%

3/25 = 12%

38/50 = 76%

13/20 = 65%

8/25 = 3.25%

17/20 = 85%

um im 12...

for the top one you could do 2/100 then make it smaller by reducing it and not it is like 1/50

ok

1)70%---7 over 10

2)40%---2over 5

3)12%---3 over 25

4)76%----38 over 50

5)65%-----13 over 20

6)40%-----8 over 25

7)85% 17 out of 20

i learned this in 5th and 6th grade so mabey you should do some tutoring or do some sort of stratigy or use a number line

7/10=70percent 2/5=40percent 3/25=75% 38/50=76% 13/20=65% 8/25= idk the formula to these problems is, for example let 7=a and 10=b. 100 divided by b = 10. 10 x a= your percentage! now you do the rest

2% is 2/100 and if you cancel this fraction down (divide the top and bottom by 2) you get 1/50

7/10 (times top and bottom by 10 to get the bottom number to be 100) > 70/100 which is 70%

2/5 (times top and bottom by 20) > 40/100 which is 40%

3/25 (times top and bottom by 4) > 12/100 which is 12%

38/50 (times top and bottom by 2) >76/100 which is 76%

13/20 (times top and bottom by 5) > 65/100 which is 65%

8/25 (times top and bottom by 4) > 32/100 which is 32%

17/20 (times top and bottom by 5 to get the bottom number to be 100) > 85/100 which is 85%

OR

(7 divided by 10) times by 100 = 70%

(2 divided by 5) times by 100 = 40%

(3 divided by 25) times by 100 = 12%

(38 divided by 50) times by 100 = 76%

(13 divided by 20) times by 100 = 65%

(8 divided by 25) times by 100 = 32%

(17 divided by 20) times by 100 = 85%