A pizza maker averages making 14 pizzas per hour. At this rate, how many hours will it take until he’s made 840 pizzas?
1 answer:
Answer:
60 hours
Step-by-step explanation:
If the pizza maker makes 14 pizzas per hour in average,
<em>Assuming </em>that s/he will keep making pizzas in this rate for the following hours, then the time s/he needs to make 840 pizza can be found by dividing 840 to the average pizza amount 14, that is :
hours.
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To solve this we can take two different approaches:
1. We can substitute theta by 30° and evaluate our expression using a calculator:
2. We can use the unitary circle and the fact that
, so we can rewrite our expression as follows:
From our unitary circle we can check that
and 
.
Lets replace those values in our expression and simplify:
Either way we can conclude that the correct answer is: D)8.7
1. We can substitute theta by 30° and evaluate our expression using a calculator:
2. We can use the unitary circle and the fact that
From our unitary circle we can check that
Lets replace those values in our expression and simplify:
Either way we can conclude that the correct answer is: D)8.7