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Rus_ich [418]
3 years ago
8

1. The fractions

Mathematics
1 answer:
sergey [27]3 years ago
3 0

Answer:

3/7 =12/n

3n=7×12

3n=84

n=84÷3

n=28

3/7= t/21

3×21=7t

63=7t

t=63÷7

t=9

3/7 =k-1/2k+10

3(2k+10)=7(k-1)

6k+30=7k-7

k=37

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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Elena L [17]

Answer:

x = 12

Step-by-step explanation:

Solve for x:

(3 x)/4 = 9

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(4×3 x)/(3×4) = 4/3×9

4/3×3/4 = (4×3)/(3×4):

(4×3)/(3×4) x = 4/3×9

4/3×9 = (4×9)/3:

(4×3 x)/(3×4) = (4×9)/3

(4×3 x)/(3×4) = (3×4)/(3×4)×x = x:

x = (4×9)/3

9/3 = (3×3)/3 = 3:

x = 4×3

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4 years ago
Hours Worked vs Salary hours worked-left salary-right
Evgesh-ka [11]

Answer:

for every ten hours there is an extra 300 dollars.

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3 years ago
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Step-by-step explanation:

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7 0
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Keith_Richards [23]

Answer:

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Step-by-step explanation:

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3 years ago
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