the ratio of two integers is 7:12. their sum is 76. find the two integers
asked Nov 2, 2011 in Algebra 1 Answers by anonymous

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2 Answers

The ratio of two integers is 7:12. Their sum is 76. Find the two integers

A = one integer\

B = the other

A + B = 76 → Call this eq1

7A = 12B

A = 12B / 7 →calll this eq2

subtitue eq2 in eq1

12B/7 + B = 76

12B + 7B = 76 x 7

19 B = 76 x 7

B = (76 x 7) / 19

B = 28

Substitute B + 28 to eq 2

A + B = 76 → Call this eq1

A + 28 = 72

A = 44

answered Nov 2, 2011 by E♥Lim Level 3 User (2,700 points)

1 Answer

 

The ratio of two integers is 7:12. Their sum is 76. Find the two integers

A = one integer\

B = the other

A + B = 76 → Call this eq1

7A = 12B

A = 12B / 7 →calll this eq2

subtitue eq2 in eq1

12B/7 + B = 76

12B + 7B = 76 x 7

19 B = 76 x 7

B = (76 x 7) / 19

B = 28

Substitute B + 28 to eq 2

A + B = 76 → Call this eq1

A + 28 = 72

 

In the first part I want to make a correction her in stead of 72 change this to 76

A + 28 = 76

A = 76 - 28

A = 48

 

answered Nov 2, 2011 by E♥Lim Level 3 User (2,700 points)
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