X=3y+5 → x-3y=5 ..(1)
x-4y=3 ..(2)
→The second <span>equation we must multiplication by (-1)
→x-3y=5
→-x+4y=-3
x's is lost..
4y-3y=5-3
y=2
x-3.2=5
x=5+6=11</span>
the correct answer is 7200
Answer:
(I think its C sorry if i get you wrong)
(Hope this helps)
Answer:
thank you, have an amazing day :)
Step-by-step explanation:
Answer:
width 5
length 7
Step-by-step explanation:
W * L = 35
L = 4 * W - 13
W * (4W-13) = 35
4 W^2 - 13 W - 35 = 0
delta = 169 + 4*4*35 = 729 = 27^2
W = (13 + 27) / 8 = 5 (its the only solution since 13 - 27 is less than 0 which makes no sense)
L = 4 * 5 - 13 = 7