Answer:
Total Distance = 520km
Average speed = 86.667km/h (to 3 decimal places).
Step-by-step explanation:
80 x 4 = 320km
100 x 2 = 200km
Total distance: 320km + 200km = 520km
Average speed: 520/6(hours) = 86.666
Ted would run 60 kilometers
20 km. X km
——— = ———-
95 min. 285 min
Cross multiply divide
20*285=5700
5700/95=60
Let Price=x value (independent variable)
Let Sales=y value (dependent variable)
use y=mx+ b, where m is slope and b is y-intercept.
Determine value of m:
m=(900 - 950)/(10-8) or -50/2 or -25
Determine value of b:
Use the x,y coordinates of (8, 950)
950=-25(8) + b
1150=b
Final Answer:
y=-250x + 1150, where y is the sales revenue generated and x is the selling price per item.