15 arches decreased by 80%
2 answers:
If it decreases by 80٪, then only 20٪ remains.
15×20٪=15×20/100=15×0.2=3
Answer: 3
Answer:
3 arches
Step-by-step explanation:
Given
15 arches decreased by 80%.
First get 80% of 15 arches
That’s 80%/100% x 15
0.8 x 15
12 arches
Now subtract 12 arches from 15 arches to get the decrease
Decrease = (15 - 12) arches
= 3 arches
Therefore, 80% decrease of 15 inches is equal to 3 arches
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