8. Five real numbers are shown. -0.86,
- , -vīi, -, -
5
4
Which list shows these numbers in ascending order?
3
7'
87
4'
F
-0.86 ,
5
4
87
4
3
71
-v11, -0.86,
5
4
1
5
3
H 3
-0.86 ,
2 -v11,
87
4
87
5
3
J
-V11,
-0.86,

The answer is 9.7 cm

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

Where’s the picture?