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kodGreya [7K]
2 years ago
15

Divided it by 7 and added 25. the result was 34 what was my number?

Mathematics
2 answers:
AfilCa [17]2 years ago
6 0

Answer:63

Step-by-step explanation:

63/7+25=34

Aleksandr-060686 [28]2 years ago
6 0

Answer:

x = 63

Step-by-step explanation:

we know that...

(x will be the stand-in for "your number")

x ÷ 7 + 25 = 34

(x ÷ 7) + 25 = 34

To find x, we have to isolate x

first, we can subtract 25 from both sides (remember, if you do an action on one side, you must do the same action on the other side)

{why are we subtracting? we need to do the opposite of a sign to get rid of it. By subtracting, we are <em>undoing</em> addition; by multiplying we are undoing division (and vice versa)  }

(x ÷ 7) + 25 = 34

          - 25    - 25     (subtract 25)

x ÷ 7 = 9

  × 7    ×7       (multiplying by 7 to get rid of the "÷7")

x = 63

now, we can test out our x-value:

(63 ÷ 7)  +25 = 34

( 9 ) + 25 = 34

34 = 34

because this equation is true, we can be certain that x = 63

hope this helps!

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Answer:

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Step-by-step explanation:

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a) Area of the base

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    height² = 12² - 6²

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                 = 108

    height = \sqrt{108} = 6\sqrt{3}

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b) Lateral area

   height² = 10² - 6²

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2 years ago
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Answer:

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Step-by-step explanation:

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