The raw increase from 50 to 90 is 40.
So the question is how much of 50 is 40?
Let's divide the two: 40/50 = .8
So 40 is .8 of 50. But what is .8 in percentage form?
.8 x 100 = 80%
So the move from 50 to 90 is an 80% increase.
Answer:
Step-by-step explanation:
a² + b² = c²
a² + (21.5)² = (31.9)²
a² + 462.25 = 1017.61
a² = 555.36
a = 23.6
He solved 30 questions.
He solved one question in one minute.
This if he continued at the speed and there are 40 minutes to solve the test and he leaves 10 minutes earlier. He is left with 30 minutes and one minutes per question . Therefore, he solved 30 question.
Answer:
111
Step-by-step explanation:
2995 divided by 27 is 110.93
rounding that up, makes each class donate around 111.