Answer:
D 18
Step-by-step explanation:
Let r = red pens
b =5r
g = 3r
The total number of pens
r+b+g
Substitute
r + 5r+ 3r
Combine like terms
9r
The number of pens must be a multiple of 9
18 is a multiple of 9
Answer:
$15.45
Step-by-step explanation:
15.00×3%=0.45
15.00+0.45=15.45
Complemento porque Es menos de 90 graus
I think it would be y=(-9/5)x -1/9
Answer:
x= 6/5y+6/5
x= 2/3y+6
Step-by-step explanation:
3x-18=2y
Step 1: Add 18 to both sides.
3x−18+18=2y+18
3x=2y+18
Step 2: Divide both sides by 3.
3x/3= 2y+18/3
x= 2/3y+6
#2
5x−6y=6
Step 1: Add 6y to both sides.
5x−6y+6y=6+6y
5x=6y+6
Step 2: Divide both sides by 5.
5x/5= 6y+6/5
x= 6/5y+6/5
