Answer: -1 3/4
Step-by-step explanation
just add the fractions together :)
(between the -2 and -1 1/2)
Multiply the first equation by 5
20x -15y = -200
multiply the second equation by 3
27x +15y =12
add the 2 new equations
20x-15y +27x +15y = -200 +12
47x = -188 (devide each side by 47)
x = -4
substitute x with -4 in any equation you like (I'll choose the second)
9*(-4) +5y =4
-36+5y=4 (add 36 to each side)
5y= 40
y= 8
Ok so we know from the graph, that in 8 seconds, the slug covered 10cm, hence the point (8,10). The unit rate in cm/s is just how far the slug travels per second, which would be:
10/8 which is 1.25 cm/s.
So the answer is 1.25cm/s
Hope this helped
Answer:
y = 2
Step-by-step explanation:
2 + 8y= 9y
2 = 9y - 8y
2= y