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zaharov [31]
3 years ago
8

Also round answers to three decimal places​

Mathematics
1 answer:
jek_recluse [69]3 years ago
5 0

Answer:

?

Step-by-step explanation:

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Solve.
lions [1.4K]

Answer:

b=9,a=12

Step-by-step explanation:

I solved by substitution:

b = 3/4a  ---> plug this into the other equation

a + b = 21   is now    a + 3/4a = 21

Reduce: 7/4a = 21

a = 12

Now solve for b:

b=3/4a is now b=3/4(12)

b=9

6 0
3 years ago
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Step-by-step explanation:

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3 years ago
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djverab [1.8K]

Answer:

Step-by-step explanation:

2.45 m in inches = 96.457 in. 2.45 meters to inches = 96.457″. To convert 2.45 meters to inches you have to divide the length expressed in the base unit of length in the International System (SI) of Units by 0.0254 .25.4Centimeters

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Serena Williams opened a savings account to deposit all her tennis winnings. She initially deposited $8000. After a year of mont
Radda [10]

Answer:

Step-by-step explanation:

Deposited amount 8000$

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5 0
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Math help please! Ty!
Klio2033 [76]
C because twice the difference of a number and 5
                       2                (n-5)                                  
or it can be wrtten as 2(x-5)          
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