I need help plz help if its not about the work u will get reported~

Step-by-step explanation:

1. 2x +5y=9, y=-3

Substitute y= -3

2x+5(-3)=9

Now you're going to multiply 5 and -3 which gives you -15

Now the equation's gonna look like this:

2-15=9

Now add 15 to both sides like this:

2x-15+15=9+15

2x=24 ( cause -15+15 is 0 and 9 +15 is 24)

Then you're going to simplify

you're going to divide both sides by 2

2x/2=24/2

So the answer is x=12

hope this helped :)

angle uzt is congruent to angle tzy. angle vzw is congruent to angle yzx.

(credits to leowren)

step-by-step explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls