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WINSTONCH [101]
3 years ago
9

One number is 9 more than another. if the sum of the two numbers is 171, find the two numbers

Mathematics
1 answer:
allochka39001 [22]3 years ago
4 0
Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171
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Solve 47 (math operation)
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Answer:

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Step-by-step explanation:

Add the opposite of the expression on the right side of the equal sign to put the equation into standard form.

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You can divide by 4.9 to make this a little easier to solve.

  t² -(8/4.9)t -36/4.9 = 0

Now, add and subtract the square of half the x-coefficient to "complete the square."

  t² -(8/4.9)t +(4/4.9)² -36/4.9 -(4/4.9)² = 0

  (t -4/4.9)² -192.4/4.9² = 0 . . . . simplify

Add the constant term, then take the square root.

  (t -4/4.9)² = 192.4/4.9²

  t -4/4.9 = ±(√192.4)/4.9

  t = (4 ± √192.4)/4.9

  t ≈ {-2.014, 3.647}

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Alex_Xolod [135]

The volume of the rectangular box is 12 cubic inches

<h3>Volume of a box</h3>

The formula for measuring the volume of a rectangular box is expressed as:

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Given the following

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Substitute

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V = 12 cubic inches

Hence the volume of the rectangular box is 12 cubic inches

Learn more on volume of. rectangular box here: brainly.com/question/8880159

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Step-by-step explanation:

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