Answer:
D. X=-3, y=4
Step-by-step explanation:
-2x+3y=18 equation 1
x=-y+1 equation 2
-2(-y+1)+3y=18 replace x value of equation 2 into equation 1
2y-2+3y=18
5y=20
y=4
solve for x by replacing y value into either equation.
x=-y+1
x=-4+1
x=-3
1/8(30)+1/5(20)= 31/4 = 7.75
You should slice 7 and 3/4 lbs of roast beef
Answer:
use this formula
1 no .H^2=p^2+b^2
H^2=8^2+15^2
H^2=64+225
H^2=289
H=
H=17
2 no. H^2=P^2+B^2
H^2=20^2+21^2
H^2=400+441
H^2=841
H=
H=29
Step-by-step explanation:
Hope this helps u!!
In Scientific notation
9.79 x 10^8