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astra-53 [7]
3 years ago
10

One positive integer is 1 greater than 3 times another positive integer. If the product of the two integers is 154, then what is

the sum of the two integers?
Mathematics
2 answers:
lianna [129]3 years ago
5 0

Answer:

29

Step-by-step explanation:

Let the smaller integer be x.

The other integer is 1 greater than 3 times x, or 3x + 1.

The product is 154.

x(3x + 1) = 154

3x^2 + x - 154 = 0

157 = 2 * 7 * 11

14 * 11 = 154

22 * 7 = 154

(3x + 22)(x - 7) = 0

3x + 22 = 0 or x - 7 = 0

3x = -22 or x = 7

x = -22/3 or x = 7

-22/3 is not a positive integer, so we discard that solution.

The smaller integer is 7.

3x + 1 = 3(7) + 1 = 22

The greater integer is 22.

The sum of the integers is 7 + 22 = 29

Westkost [7]3 years ago
4 0

Answer: 29

Step-by-step explanation:

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