A) There 540 students in a school last 648 students this year. kind increased number of student in percent. ​

Step-by-step explanation:

Math 120 - 01 Summer 2021

Consuelo Butler

08/07

Homework: Practice

Exam 3

Question 1, 12.1.13

HW Score: 10%, 3 of 30 points

Score: 1 of 1

A professor had students keep track of their social interactions for a week. The

number of social interactions over the week is shown in the following grouped

frequency distribution. How many students had at least 60 social interactions for

the week?

12

Number of Social

Interactions

30-34

35-39

40-44

45-49

50-54

55-59

60-64

65-69

70-74

75-79

Frequency

9

14

11

15

16

8

7

3

1

1

The percentage increase was 20%

Step-by-step explanation:

To figure this out, we need to use a certain method. That is the  subtraction in this case.

Given: The amount of students last year was 540. This year the amount of student were 648 students.

Step 1: Subtract 540 from 648

648 - 540 = 108

Step 2: Find the percentage of 540 that is equal to 108

20% × 540 = 108

20%

if x decreases by 4 then y increases by 10

step-by-step explanation:

6 on both sides and twelve on the top and the bottom

step-by-step explanation: