Answer:
9.2 gallons
Step-by-step explanation:
18.4/2 = 9.2 gallons
Xy=6
x=6/y......1
3x+2y=12
from1
3*(6/y)+2y=12
{after solving}2y^2-12y+18=0
y^2-6y+9=0 {taking y common}
y^2-3y-3y+9=0
y(y-3)-3(y-3)=0
y=3,3............2
putting 2 in 1
x=2.........3
9x^2+4y^2=
from 2 and 3
9*4+4*9=36+36=72
Gina can ship all 3 books. The books only weigh 4 and 13/16
Answer:
150 + 150 = 300
Step-by-step explanation:
50x = 30y
x + y = 8
~~~~~~~~~~~~~~~
x = 8 - y
50(8-y) = 30y
400 - 50y = 30y
400 = 80y
y = 5
x= 3
Answer:
Number 4 is neither, number 6 is perpendicular
Step-by-step explanation: