Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The
result now obtained is 3 times the same number she thought of. What is the number?
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Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The
result now obtained is 3 times the same number she thought of. What is the number?
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Answer:
Let she thoughts the no x
according to question ,she subtract the 5/2 from the no.= x-5/2
now ,she multiply the result by 8 =8(x-5/2)
according to statement
3x = 8(x-5/2)
3x=8x -20
20=5x
x=4
she thought the no. as 4
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Step-by-step explanation:
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Answer:
4
Step-by-step explanation:
let the number be x
(x-5/2)8=3x
x-5/2=3x/8
2x-5 3x
____ = _____
2 8
8(2x-5) =(3x)2
16x-40= 6x
16x-6x =40
10x=40
x=4