The Mean would increase to 82.17 or a total increase of .17

You have 99 students and the avg is 82, therefore we can multiply 99*82 to get our total points

99*82=8118
We add a single score of 99 to our total points 8118+99= 8217

Then we add the student to the total number of students bringing it to 100 and divide our new total by the our new number of students.
8217/100 = 82.17

8 0

3 years ago

By what percent will a fraction increase if its numerator is increased by 60% and its denominator is decreased by 20%?

Strike441 [17]

Lets just use $\frac{10}{20}$ for an example. If the number is increased by 60% and the denominator is decreased by 20% we get the new fraction being: $\frac{16}{16}$ . Since then new one is equal to 1, and the original is equal to $\frac{1}{2}$ , we see that this manipulation of the fraction causes an increase of 100%.

7 0

3 years ago

he local newspaper has letters to the editor from 30 people. If this number represents 2% of all of the newspaper's readers, ho

marta [7]

Answer: 1500 readers
explanation: all readers take up 100%
100/50=2
100% / 50 = 2%
2% x 50 = 100%
30 x 50 = 1500 readers

7 0

3 years ago

Which expression is equivalent to 5m + m + 2m?

vazorg [7]

Answer:

Step-by-step explanation:

7 0

3 years ago