Question

Circles M and K are congruent, QR is congruent to LN and OP is congruent to VW . Find x and y.


I got x=-0.52 and y = 2.39. But I get the feeling I got it wrong. Is it wrong??

Answer 1

I know that I have to solve 8=3x+4y and 2x=5y+13.

Answer 2

yea

Answer 3

3x + 4y = 8
2x - 5y = 13

Answer 4

multiply the first equation by 5 and the second by 4 all the way through

Answer 5

15x + 20y = 40
8x - 20y = 52

Answer 6

now add them together, notice the y term falls out

Answer 7

I'm going to use the elimination method and I multipled one by -2 and another by 3 to get

16= 6x+8y
and
39=-6x+15y

Answer 8

ok

Answer 9

and eliminated the x to get 55=23y

Answer 10

y = 55/23 = 2.39..... Is it right?

Answer 11

nah,...

Answer 12

o.O

Answer 13

x=4
y=-1

Answer 14

i think you messed up when you multiplied the equations through

Answer 15

3x + 4y = 8
2x - 5y = 13

Answer 16

-2 times the first and 3 times the second

Answer 17

-6x - 8y = -16
6x -15y = 39

Answer 18

-23y = 23

Answer 19

y = -1

Answer 20

you had a +15y in yours, it was a -15y

Answer 21

oh yeah your right! I got y=-1 x=4 xDD

Answer 22

cool

Answer 23

Thank you for helping! :D

Answer 24

yw