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Please help me with this I need it

Please help me with this I need it-example-1
User Kegn
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1 Answer

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9514 1404 393

Answer:

2/3

Explanation:

Let x represent the fraction of Cheryl's income she spent in September. Then 1-x is the fraction she saved.

In October, her spending increased by 0.2x, and her savings decreased by 0.4(1 -x). Since Cheryl spends or saves all of her income, these two change amounts must be equal:

0.2x = 0.4(1 -x)

x = 2(1 -x) . . . . . . multiply by 5 to clear fractions

x = 2 -2x . . . . . . eliminate parentheses

3x = 2 . . . . . . . . add 2x

x = 2/3 . . . . . . divide by 3

Cheryl spent 2/3 of her income in September.

User Malgo
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