If his best time is x, and the best time is smaller, then (1+1/3)*x=his second best time. If x+4=his second best time (since his second best time is 4 seconds slower), then (1+1/3)*x=x+4. Multiplying it out, we get (3/3+1/3)*x=x+4
=4x/3=x+4. Subtracting x from both sides, we get 4x/3-3x/3=x/3=4. Multiplying both sides by 3, we get x=12=his best time
Answer: y=-1/2x-3/4
Step-by-step explanation: I cannot graph it for you, but i can simplify it
Answer:
1/2
Step-by-step explanation:
2 red marbles, 3 blue marbles, and 1 green marble= 6 marbles
P( blue) = blue /total
= 3 /6
= 1/2