I will be using the substitution method
y=2x+5
y=x+4
____________
because y=y and they are the same,
2x+5=x+4
-5 -5
-------------
2x=x-1
-x -x
------------
x=-1
then plug in
y=2x+5
y=2(-1)+5
y=-2+5
y=3
____________
y=x+4
y=(-1)+4
y=3
the answers are the same, that is the check
Answer:
proportional
Step-by-step explanation:
16 old rings still is 1 new ring to 8 old rings
Answer:
450 gm
Step-by-step explanation:
Answer:
Lin's drawing is larger.
Step-by-step explanation:
Say that their backyard is 1 yard, her brother's scale drawing would only be 1 inch, but Lin's scale drawing would be 3 inches. From this you can take away that the smaller the scale the bigger the scale drawing, (does that sentence make any sense?)
