Find the intersection of the following two lines.?

2 ⤊

Find the intersection of the following two lines.?

Find the intersection of the following two lines.
2x + 4y = 11
-5x +3y = 5

2007-09-16 06:18:27 · 3 answers · asked by jewel7962002 1 in Science & Mathematics ➔ Mathematics

3 answers

10x + 20y = 55
- 10x + 6y = 10----ADD
26y = 65
y = 65 / 26
y = 2 ½

2x + 10 = 11
2x = 1
x = ½

x = ½ , y = 2 ½

2007-09-16 10:58:25 · answer #1 · answered by Como 7 · 2⤊ 0⤋

(0.5 , 2.5)

x= (11 - 4y)/2

-5(11 - 4y)/2 + 3y = 5
-27.5 + 10y + 3y = 5
13y = 32.5

==> y=2.5

2x + 4(2.5) = 11

==> 2x = 11-10 = 1

==> x= 0.5

==> (0.5 , 2.5)

2007-09-16 13:24:24 · answer #2 · answered by aspx 4 · 0⤊ 0⤋

x+2y=5.5

x=5.5-2y

-5(5.5-2y)+3y=5

-27.5+10y+3y=5
13y=32.5

y=2.5

2x+10=11

2x=1

x=.5

(.5, 2.5)

2007-09-16 13:27:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋