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Kailangan po kase ng explanation

Answer:
1. 72
2.25
3. 22.2
4. 25%
5. 13
Step-by-step explanation:
1.) . 80 x 90= 72
2.) 10 = 40% x n
10/.40 = n
25 = n
3.) 74 x. 30 = 29.6
4.)7.5 = n x 30
7.5/30 = n
. 25 or 25% = n
5.). 65 x 20 = 13
1. 80 percent of 90 equals what number?
Base: 90
Rate: 80%
Percentage: ??
Solution:
Percentage = Rate x Base
0.80 x 90 = 72
Therefore, 80 percent of 90 is equal to 72
2. 10 is 40% of what number?
Base: ??
Rate: 40%
Percentage: 10
Solution:
Base = Percentage / Rate
10 / 0.40 = 25
Therefore, 10 is 40% of 25
3. What is 30% of 74 equal to?
Base: 74
Rate: 40%
Percentage: ??
Solution:
Percentage = Rate x Base
0.40 x 74 = 29.6
Therefore, 30% of 74 is equal to 29.6
4. 7.5 is what percent of 30?
Base: 30
Rate: ??
Percentage: 7.5
Solution:
Rate = (Percentage / Base) x 100
7.5 / 30 = 0.25 x 100 = 25%
Therefore, 7.5 is 25% of 30
5. 65% of 20 is what number?
Base: 20
Rate: 65%
Percentage: ??
Solution:
Percentage = Rate x Base
0.65 x 20 = 13
Therefore, 65% of 20 is 13
Note: / means divide