Multiply the number 10 by multiples and then multiply the number of the obtained number by one minus 72 times the number of ten
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Answer:
1
What is the number if 10 is added to the number and the result is multiplied by 5 and then 20 is subtracted and the results are 100?
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Liana Sive
Answered 10 August 2020
Let X be the number sought.
We are told that 10 is added to the number. So we have X + 10.
We are then told that the result of the addition (X + 10) is multiplied by 5. So we have 5(X + 10).
We are then told that 20 is subtracted from 5(X + 10), so we have 5(X + 10) - 20.
Finally, we are told that the result [5(X + 10) - 20] is equal to 100.
Mathematically, this means we set the result equal to 100, which gives us
5(X + 10) - 20 = 100
This is the same thing as
5X + 50 - 20 = 100
This is the same thing as
5X + 30 = 100
Or
5X = 70
Therefore, X = 70/5 or reducing the fraction we get
X = 14
Now, let’s check this result.
14 + 10 = 24
24 x 5 = 120
120 - 20 = 100.
Step-by-step explanation:
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