B. 3 hundreds + 34 tens + 5 ones
C. 5 hundreds + 4 tens + 5 ones
D. 6 hundreds + 2 tens + 15 ones
Answer:
-1
Step-by-step explanation:
I hope this helps!
A percentage is a way to describe a part of a whole. The percentage of increase from 50 to 90 is 80%.
A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
The percent of increase from 50 to 90 is,
= (90-50)/50 × 100%
= 40/50 × 100%
= 0.80 × 100%
= 80%
Hence, the percentage of increase from 50 to 90 is 80%.
Learn more about Percentages:
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