-1,3 and 4,3
the “x” stays the same and the “y” is opposite to form a rectangle
Answer:
He cut of 6 feet of ribbon.
Step-by-step explanation:
45
-39
6
3, because a negative number multiplied by another negative number (in this case, itself) will always be a positive number.
Answer:
at 1 pm
Step-by-step explanation:
![\\ \sf\longmapsto 3x+3y=6\dots(1)](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%203x%2B3y%3D6%5Cdots%281%29)
![\\ \sf\longmapsto 5x-6y=15\dots(2)](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%205x-6y%3D15%5Cdots%282%29)
Multiply eq(1) by 2 and eq(2) by 1
![\\ \sf\longmapsto 6x+6y=12](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%206x%2B6y%3D12)
![\\ \sf\longmapsto 5x-6y=15](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%205x-6y%3D15)
![\\ \sf\longmapsto 11x=27](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%2011x%3D27)
![\\ \sf\longmapsto x=\dfrac{27}{11}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20x%3D%5Cdfrac%7B27%7D%7B11%7D)
Now
Put in eq(1)
![\\ \sf\longmapsto 3\dfrac{27}{11}+3y=6](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%203%5Cdfrac%7B27%7D%7B11%7D%2B3y%3D6)
![\\ \sf\longmapsto \dfrac{81}{11}+3y=6](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20%5Cdfrac%7B81%7D%7B11%7D%2B3y%3D6)
![\\ \sf\longmapsto 3y=6-\dfrac{81}{11}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%203y%3D6-%5Cdfrac%7B81%7D%7B11%7D)
![\\ \sf\longmapsto 3y=\dfrac{66-81}{11}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%203y%3D%5Cdfrac%7B66-81%7D%7B11%7D)
![\\ \sf\longmapsto 3y=\dfrac{15}{11}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%203y%3D%5Cdfrac%7B15%7D%7B11%7D)
![\\ \sf\longmapsto y=\dfrac{15}{33}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20y%3D%5Cdfrac%7B15%7D%7B33%7D)