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2 years ago

How to rewrite 3/4 with a denominator of 12

Mathematics

2 answers:

alina1380 [7]2 years ago

6 0

Answer:

9/12

Step-by-step explanation:

4x3=12

because we are multiplying the denominator we also have to multiply the numerator by the same number

3x3=9

emmasim [6.3K]2 years ago

3 0

Answer:

it would be 9/12

Step-by-step explanation:

if you want to get a denominator of 12 you would have to multiply by 3 from both and you should get 9/12. 3*3=9 and 4*3=12.

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In a group of 15 children the ratio of the boy : the girl is 2: 3: 5 more girls join the group. Calculate the percentage of boys

marta [7]

Answer:

Percentage of new group boys = 30%

Percentage decrease for the boys = 10%

Increase percent of the girls = 10%

Step-by-step explanation:

Given:

Number of children = 15

Ratio (Boys to Girls) = 2 : 3

Number of more girls join = 5

Find:

Percentage of boys in new group

Percentage decrease for the boys

Increase percent of the girls

Computation:

Number of boys = 15[2/5]

Number of boys = 6

Number of girls = 15[3/5]

Number of girls = 9

Percentage of boys = [6 / 15]100

Percentage of boys = 40%

Percentage of girls = [9 / 15]100

Percentage of girls = 60%

New number of students = 15 + 5

New number of students = 20

New number of boys = 6

New number of girls = 9 + 5 = 14

Percentage of new group boys = [6 / 20]100

Percentage of new group boys = 30%

Percentage of new group girls = [14 / 20]100

Percentage of new group girls = 70%

Percentage decrease for the boys = 40% - 30%

Percentage decrease for the boys = 10%

Increase percent of the girls = 70% - 60%

Increase percent of the girls = 10%

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3 years ago

Which number is irrational...please help!!

yKpoI14uk [10]

Answer:

D I think

Step-by-step explanation:

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3 years ago

(Please answer soon as possible) At the beginning of the day the stock market goes up 60 3/4 points and stays at this level for

Svet_ta [14]

Answer:

it is 2766628276262626828373636737 points

Step-by-step explanation:

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3 0

3 years ago

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How to solver for 2y-1/3=5 prove: y= 8

nirvana33 [79]

3×2y-(1/3×3)=5×3
6y-1=15
6y-1+1=15+1
6y=16
y=8/3
Y cannot be 8

3 0

3 years ago

HELPPP I NEED TO DO THIS BEFORE 7:00

Oksana_A [137]

Answer:

A, (13/3 x 5/13)

Step-by-step explanation:

So first, you should change the mixed numbers into improper fractions. To convert, just multiply the whole number by the denominator and add the numerator. Do that to both fractions and you should get 13/3 ÷ 13/5. Since you need to switch to multiplication, switch the sign and flip that fraction/ That asnwer is 13/3 x 5/13. Hope that helps! :)

3 0

2 years ago

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