# math

posted by .

find each missing number.

1.)19/n = 0.76
2.)n:20 = 0.55
3.)n = 1:10 (n is a decimal)
4.) n% = 1:100
5.) n% = 33:100
6.) 99% (n is a decimal)
7.) n/25 = 17:25
8.) 41:n = 0.82
9.) n/25 = 0.08
10.) 21:n = 0.21

• math -

1.)

19 / n = 0.76 Multiply both sides by n

19 = n * 0.76 Divide both sides by 0.76

19 / 0.76 = n

25 = n

n = 25

2.)

n : 20 = 0.55 Multiply both sides by 20

n = 0.55 * 20

n = 11

3.)

n = 1 : 10

n = 0.1

4.)

n % = 1 : 100

1 % = 1 : 100

5.)

n % = 33 : 100

33 % = 33 : 100

6.)

99 % = 99 : 100 = 0.99

7. )

n / 25 = 17 : 25

Obviously n = 17

8. )

41 : n = 0.82 Multiply both sides by n

41 = n * 0.82 Divide both sides by 0.82

41 / 0.82 = n

50 = n

n = 50

9. )

n / 25 = 0.08 Multiply both sides by 25

n = 25 * 0.08

n = 2

10. )

21 : n = 0.21

Obviously n = 100 becouse

21 : 100 = 0.21

## Similar Questions

1. ### math

The minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.1 ounce of Tostitos provides 9% of the MDV …
2. ### Math

2/5=what I assume you are looking for a decimal. Just divide 5 into 2, and the answer will be the decimal. However, if you are looking for a percentage, multiply the decimal by 100. I hope this helps. If not, repost with a clearer …
3. ### math

how do u mutiply decimals and how do u make a decimal into a fraction do you mean long-hand?
4. ### statistics

A professional basketball player has embarked on a program to study his ability to shoot foul shots. On each day in which a game is not scheduled, he intends to shoot 100 foul shots. He maintains records over a period of 40 days of …
5. ### Math

Please match each number with its best example. Some values will need to be changed into a decimal format. A. Recurring Decimal B. Mixed Number C. Non-repeating Decimal D. Finite Decimal E. Decimal Examples: ½ 5½ π 0.375 ⅓ …
6. ### MATH

WRITE THE DECIMAL WITH DECIMAL POINT FOR EACH FRACTION. FIRST SIMPLIFY ANY FRACTION TO LOWEST TERMS SUCH AS A WHOLE #, A MIXED #, OR A SIMPLIFIED PROPER FRACTION FOR THE FOLLOWING: 49/50, 5/7,14/11, 69/100,3/2,7/8,7/12,8/9,15/20,27/25, …
7. ### Math check

write the decimal as a fraction or a mixed number in simplest form 2.67 2.67/1× 100/100 = 267/100 267/100 = 2 67/100?
8. ### Math- HELP

1. Write the fraction or mixed number as a decimal 7/8 A. 0.78** B. 0.875 C. 0.8777 D. 1.875 2. 1 1/2 A. 0.50 B. 1.5** C. 1.05 D. 1.1 3. 4 3/8 A. 0.375 B. 4.35 C. 4.375 D. 4.5** 4. Write the decimal as a fraction or mixed number 0.4 …
9. ### Math

1. Write the fraction 8/9 as a percent. Round to the nearest hundredth of a percent where necessary. 88.89% 1.13% 44.44% 66.67% 2.Write the decimal 0.041 as a percent 41% 4.1% 410% 0.41% 3.A survey at your school found that 792 in …
10. ### Maths GRE

A salesman receives a commission of c% on a sale of D dollars. Find his commission. A)cD B)cD/100 C)100cD D)c/100D E)100c/D Any number expressed as a percentage is that number divided by 100 expressed as a decimal. Thus c% is c/100 …

More Similar Questions