Math, asked by hyrock, 1 year ago

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 plz give the answer

Answers

Answered by manthangriezmann8
425

Let the number she thought be x


(x/1 - 5/2) 8 = 3x

(2x-5/2)8/1=3x

16x-40/2=3x

16x-40=6x

16x-6x=40

10x=40

x=40/10

x=4

Answered by qwachieve
10

Given:

5/2 subtracted from a number gave a result.

The result is multiplied by 8, and the result obtained is three times the number.

To find:

The value of the number thought by Amina.

Solution:

Let the number be X

Amina subtracts 5/2 from the number X and multiplies the final answer by eight. She gets the result three times the number X.

8 (X – 5/2) = 3 X

Opening the brackets and solving the equation,

8X – 8 × (5/2) = 3X

8X – 3X = 20

5X = 20

X = 4

The number Amina thought of is 4.

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