12/3 = 4
4 cars per hour
4 x 5 = $20
20 x 8 = $160 for 8 hrs
x(t) = 20t
y(t) = 40t - 5t^2
Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y
x(5) = 20(5) becomes x(5) = 100
y(5) = 40(5) - 5(5)^2 becomes y(5) = 200 - 125 and then y(5) = 75
The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75
Answer: 0.75
(7 + i) - (6 - 2i) = 7 + i - 6 + 2i = 1 + 3i
Answer:
2.964
Step-by-step explanation:
C- in the table every ratio y/x is equal so the relationship is proportional
