Answer:
Step-by-step explanation:
Use the "vertical line test." Draw a vertical line through each graph. If the line intersects the graph in more than one place, the graph does NOT represent a function. Only the graph in the upper, right-hand corner represents a function, as a vertical line intersects this graph in only one place.
4 legged tables : x
3 legged stools : y
x + y = 20 y= 20 - x
4x + 3y = 68
Replace y by 20 - x so we only have one letter
4x + 3(20 - x) =68
4x + 60 - 3x =68
x + 60 = 68
x = 8
To find y replace x by 8
y = 20 - 8
y = 12
So you have 8 four legged chairs and 12 three legged stools.
Hope I helped!
To be supplementary the angles must add up to 180°
the two angles must be a linear pair to be supplementary
Answer:
✔︎
Step-by-step explanation:
༄❁༄❁༄❁༄❁༄
hope it helps...
have a great day!!
Answer:
5
Step-by-step explanation:
2-(-4)+3+(-6)-(-2)
2+4+3-6+2
5
