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Elden [556K]
3 years ago
15

In a group of 38 pupils, 5 play flute only.

Mathematics
1 answer:
Ne4ueva [31]3 years ago
3 0
5+14+12 = 31
38-31= 7
7 students play neither the flute or piano

7/38= 18.42%
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Hello , I need help please and thank you very important
Gre4nikov [31]

A. 84

Because 14x6=84


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3 years ago
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6/7 divided by 2/3 = ???
Nana76 [90]

Answer:

1 2/7

Step-by-step explanation:

Hi! so this is very easy to solve. Let me guide you through it!

6/7 divided by 2/3

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes

6/7 X 3/2

For fraction multiplication, multiply the numerators and then multiply the denominators to get

6      x 3       18

__    ___  =  ____  

7       x2          24

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 18 and 14 using

GCF(18,14) = 2

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___     ___   =   ___

14      ÷ 2             7

The fraction

9/7

is the same as

9÷7

Convert to a mixed number using

long division for 9 ÷ 7 = 1R2, so

9/7=1 2/7

so there fore =

6/7÷2/3=1 2/7

(sorrry this took long i was solving it!)

4 0
3 years ago
How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?
zhannawk [14.2K]

Answer:

10 kg

Step-by-step explanation:

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Then 2 kg salt will be there in 100 kg solution.

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Anika [276]

Answer:

B 1/2

Step-by-step explanation:

This is right

7 0
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Six divided by two hundred seventy six
Sveta_85 [38]
6/276 = 0.022

Or if you want a simplified fraction, then 1/46
3 0
3 years ago
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