Mr. Chang’s class has 28 students, 4 Over 7 of whom are girls. Which equation shows how to determine the number of girls in Mr. Chang’s class? 28 divided by 4 Over 7 = 49
Image with alt text: 28 divided by 4 Over 7 = 49

28 times 4 Over 7 = 16
Image with alt text: 28 times 4 Over 7 = 16

4 Over 7 divided by 28 = 1 Over 49
Image with alt text: 4 Over 7 divided by 28 = 1 Over 49

7 Over 4 divided by 28 = 1 Over 16

In Mr. Changs class

there are 28 students in total

4 over 7 = 4/7 = out of every 7 students 4 are girls.

2 - Use mathematical reasoning

To figure out how many girls;

Out of the for every 7 students of the 28 total 4 are girls

With that in mind we'll need to know how many groups of 7 there are which is 28/7

We know now that there are 4 groups of 7 students, so with there being 4 girls in each group, we multiple 4 girls across each group which is 4 x 4

This equals 16

To summarize what I did, I divided 28 by 7 and multiplied that by 4 (How many girls per) which is the same as multiplying 28*4 and dividing that by 7

which is the same as 28 x 4/7

Reasoning

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll