You work for a printing company.Your machine can prine 80 posters per hour. You printed 600 posters. How many hours did you work
1 answer:
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Answer:
Step-by-step explanation:
To evaluate :
Solution:
Two negatives multiply to become a positive.
Thus, we can remove parenthesis by reversing the signs of the fraction by multiplying the negative outside.
⇒
Since the denominators are same for both fractions, so we simply add the numerators.
⇒
⇒ (Answer)