We add all these mixed numbers together:
1 1/2 + 2 3/4 + 2 1/3
It will be easier to convert the mixed numbers into improper fractions:
3/2 + 11/4 + 7/3
Now we have to find the common denominator which is 12:
18/12 + 33/12 + 28/12 = 79/12 = 6 7/12
The answer is 6 7/12 hours.
Answer:
Step-by-step explanation:
1. D
2. B
3. C
4. C
5. C
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Answer:
Beaker: $3, Goggles: $7
Step-by-step explanation: