Answer:
What's a Solution to a System of Linear Equations? Note: If you have a system of equations that contains two equations with the same two unknown variables, then the solution to that system is the ordered pair that makes both equations true at the same time.
Step-by-step explanation:
Draw a trapezoid and count the total lengths you have to get the answer
The second one is
the right answer.
(i think i’m right i’m sorry if i’m not !)
(1) let there be x book and let the total cost be y dollars.
y=19.25x+40
y=16x+69.25
(2) 19.25x+40=16x+69.25
3.25x=29.25
x=9
9 silver book, 9 gold book.
(3) y=19.25x+40=19.25*9+40=213.25 dollars
both companies' total cost are 213.25 dollars.
Answer:
y+5/3x=34/3
Step-by-step explanation:
y=mx+b
3=5m+b
-2=8m+b (system of equations, subtract them)
5=-3m
-5/3=m
3=5m+b
3=5(-5/3)+b
3=-25/3+b
9/3+25/3=b
34/3=b
y=-5/3x+34/3
y+5/3x=34/3
