Answer:
Step-by-step explanation:
The distance, D, is given by the speed, S, times the time, T:
D = S*T
<u> D </u> <u> S*T </u> <u> Time </u> <u>Equation for each segment</u>
200 = 150T1 T1 = 1.33 hr y=150x 0
T
1.33 hr
300 = 200T2 T2 = 1.5 hr y=200x 1.33
T
2.83 hr
400 = 250T3 T3 = 1.6 hr y=400x 2.83
T
4.43 hr
The graph can be drawn as three lines, ione each for the three segments, each having the slope shown in the equation for that segment and extending between the range of values for T (which is the "x" in the equation and on the graph). The y axis will be ditance, in km.
The overall speed is the total distance divided by the total time:
D(km) T(hr)
1) 200 1.33
2) 300 2.83-1.33 = 1.5
3) <u>400</u> <u>4.43-2.83 = 1.6</u>
900 km 4.43 hr
(900 km)/(4.43 hr)
Average speed = 203.01 km/hr
Answer:
whats the info below i cant see it?
Step-by-step explanation:
Answer: Total cost of the models the town buy = $1050
Solution:
The science museum sells dinosaurs models to the town school and town library for $105 each.
The two library buys 4 models and cost of each model $105
Total cost pay by library = 4x105 = $420
The school buys 6 models and cost of each model $105
Total cost pay by school = 6x105 = 630
We need to calculate total cost of the models the town buys
Total cost = Cost buy library + Cost buy school
Total cost = 420+630
Total cost = $1050
Answer:
1/10
Step-by-step explanation:
7/10
= .7