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yawa3891 [41]
3 years ago
14

In the evening, a water tank contained 30cm of water. A few days later, it contained 21 cm of water. Ahmed claims that there is

a 30% decrease. is Ahmed correct
Mathematics
1 answer:
kherson [118]3 years ago
8 0
Yes.
30 x .30 = 9 cm is a 30% decrease
30-9= 21 cm
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