At east middle school, there are 58 left-handed students and 609 right-handed students. the numbers of left- and right-handed students at west junior high are proportional to the numbers at east middle school. a. left-handed: 424 right-handed: 483 b. left-handed: 28 right-handed: 378 c. left-handed: 48 right-handed: 504 d. left-handed: 56 right-handed: 560 e. left-handed: 30 right-handed: 315

The anwers Is C and E.

A relationship between two quantities is proportional if the ratio between those quantities is always equivalent.

Hint #22 / 4

Let's look at the ratio between right- and left-handed students at East Middle School.

6

0

9

right

5

8

left

=

1

0

.

5

right per left

58left

609right

 =10.5 right per left

At East Middle School, there are

1

0

.

5

10.5 right-handed students for every left-handed student.

Hint #33 / 4

Now we can compare the other combinations of values for left-handed and right-handed students. Which ratios are equivalent to the ratio at East Middle School?

So the anwers is C AND E

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

look at photo