20 1/2= 4 hours
20 1/2÷4= 5 1/8 1 hour
for 9 hours = 5 1/8×9
=46 1/8
Answer:
A. √10
Step-by-step explanation:
A rational number can be written as the ratio of two integers
A. √10
This cannot be simplified into the ratio of two integers, Square roots that cannot be simplified are irrational
B. -√81
- 9
-9/1 which is the ratio of two integers so it is rational
c. 5/4
This is the ratio of two integers so it is rational
d. 9.12
912/100
This is the ratio of two integers so it is rational
-10 times 12
Hope I Helped!
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The answer is D. To solve 3/5 ÷ 4/7 you would change it to 3/5 × 7/4.
