Answer:
X+Y=S, Y is 3 pounds and X is 12 you add them both and get 15 pounds which is S
Answer:
30
Step-by-step explanation:
30 because 15/20=30/40
Multiply by 4 on both sides. This results into:
24 = a + 8
If 8 is substracted in both sides then a would be:
16 = a
Okay, so you what you would is solve one equation for Y=mx+b and then substitute this equation for Y so the answer would be Y=-3/2x + 20
And then you would do 2x-3(-3/2x+20)=-11 and you solve it for x
But to get y you would substitute what you got for x into ether equations.
A). √36 = +6 and -6 . Rational
B). √49 = +7 and -7 . Rational
C). √13 = +3.60555... and -3.60555... . Decimal never ends.
Irrational
D). √121 = +11 and -11 . Rational
