Answer:
1.5 km
Step-by-step explanation:
15 cm * 10 000 = 150 000 cm = 1.5 km
x+4y=15 2x-y=-15
We have to make x neg.
-2(x) + 4y (-2)= -2(15)
-2x-8y=-30
2x-y=-15
-9y= -45
Solve for y
Y=-45/-9
Y = 5
Substitute your y answer into one original equation to find x .
x+4y=15
X+4(5)=15
X+20=15
X=15-20
X= -5
Answer is (-5,5)
Answer:
the 3 pieces are 5.16ft each and the 14% that he cut off is 2.52 ft
Step-by-step explanation:
the 14 % that he cut off is 2.52ft
he has 15.48ft left
15.48/3=5.16
