Answer:
To solve for y, you want to use the distributive property
First you want to distribute the 8 through the 3y-5 and the 9 through the y-5
8(3y-5)= 24y-40
9(y-5)= 9y-45
24y-40=9y-45 (get the x on one side, so first add 40 to each side)
24y=9y-5 (now subtract 9y to each side)
15y=-5 (divide both sides by 15)
y= -5/15= -1/3
Hope this helps ;)
Linear because y= 1 - x makes a straight line
Answer:
k = -2
Step-by-step explanation:
x -1 0 2 5
f(x) 2 0 -4 -10
ƒ(x) = kx
Substitute a pair of values for x and ƒ(x)
-10 = k×5
Divide each side by 5
k = -2
The constant of variation k = -2.
They added it wrong. They added it like this:
When it shouldve been this:
They just added a place marker in all numbers below 100.
Basiclaly, when will total distance equal distance they are apart
distance apart=280
distance=speed times time
assuming they travel sasme amount of time
time=t
distance=speed times time
d1=95 times t
d2=105 times t
total distance=d1+d2
280=d1+d2
280=95t+105t
280=200t
divide both sides by 200
1.4=t
answer is 1.4 hours or 84 mins