find the number whose double is 45 greater than its half?
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Answered by
17
let the number be a
2a = a/2 + 45
2a - a/2 = 45
3/2a = 45
a = 45 × 2/3
a = 30
the number is 30
2a = a/2 + 45
2a - a/2 = 45
3/2a = 45
a = 45 × 2/3
a = 30
the number is 30
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Answered by
0
Answer:
30
Step-by-step explanation:
Let the no. be x.
2x = x/2 + 45
2x - x/2 = 45
4x-x / 2 = 45
3x = 90
x = 30
Therefore, the required number is 30.
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