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When a number is decreased by 30% of itself, the result is 28. What is the number?

When a number is decreased by 30% of itself, the result is 28. What is the number?
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When a number is decreased by 30% of itself, the result is 28. What is the number?

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User Akotian
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2 Answers

2 votes
Number decreased by 30% of itself is 28
x - .30x = 28
.70x = 28
x = 28/.70 = 40

40 minus 30% of itself is 40 - 12 which does = 28.
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User Florian Schaetz
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8.6k points
5 votes
x -.30x = 28
.70x = 28
x = 40
answered
User ObsessiveCookie
by
8.2k points
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