We call the ratio between two directly proportional quantities the constant of proportionality. When two quantities are directly proportional, they increase and decrease at the same rate. While these two quantities may increase or decrease, the constant of proportionality always remains the same.
3x-5y=-3 original problem
3(1)-5y=-3 put 1 in the place of x and multiply
3-5y=-3 subtract 3 from both sides
-5y=-6 divide both sides by -5
y=possitive 6/5
hope that helps
Answer:
15(1/3b+3)≤6(b+9)
3b+3×15(1/3b+3)≤3b+3×6(b+9)
15≤3b+18(b+9)
15≤3b+18(b+9)
15≤21b+162
162-15≤216
147≤216
147/21≤b
7≤b
b≤7
Y=2x-4
X=2
X+2y=10
X+2x0=10
X+0=10 therefore, x=10
Answer:
X = 9
I could not find any of the others close to it,, sorry if I’m wrong
Step-by-step explanation: