Time Distance Distance / Time
2hrs 90 miles 90 miles / 2 hrs = 45 miles / hr
3hrs 135 miles 135 miles / 3 hrs = 45 miles / hr
5hrs 225 miles 225 miles / 5 hrs = 45 miles / hr
6hrs 270 miles 270 miles / 6 hrs = 45 miles / hr
Constant of proportionality is 45 miles / hr. This is the same for the four values. The unit rate is also 45 miles / hr.
Let us assume the Distance , d is directly proportional to Time, t
d α t
d = kt
Constant of proportionality is k which is D/T
d = 45t
30% is 24
45% is 36
take 15% and multiply it by however much it takes to make the percentage than multiply that by 12
2*(1/2*8 inches*4 inches)+10 inches*4 inches
Answer:
z - 4
Step-by-step explanation:
Step 1: Convert "4 less"
-4
Step 2: Convert "Product of one and a number z"
1 · z
z
Step 3: Combine
z - 4
