Answer:
Step-by-step explanation:
The ratio 19/25 is the same as 76/100, or 0.76.
Multiplying this by 100%, we get 76%, the percentage of questions answered correctly.
Subtracting 76% from 100% results in 24%, which is the percentage of questions not answered correctly.
The unit rate is obtained by dividing the amount of work done by the unit time. In the problem, we are already given the total number of parts manufactured (amount of work done) and the total amount of time to manufacture (7 hours).
Obtaining the unit rate is as simple as dividing 1116 parts by 7 hours, as shown below:
Unit rate = 1116 parts / 7 hours
Unit rate = 159.42857
Therefore the unit rate is approximately 159 parts/h.
Answer:
sides
Step-by-step explanation:
The perimeter is equal to the sides of the plane figure all added together.
Answer:
B
Step-by-step explanation:
This is an easy one!
x+4 = 8
x = 8-4
Therefore x = 4.
