Every day a school bus driver passes the same traffic light twice, once before school and once after. Each time he passes the li
ght, he records If it is red, green, or yellow.
Here is a summary of the data he got after 200 days.
Traffic light before school Traffic light after school Number of day
red red 25
red green 21
red yellow 17
green red 16
green green 31
green yellow 27
yellow red 22
yellow green 28
yellow yellow 13
Suppose the driver will continue recording the colors for 150 more days.
In how many of these 150 days will the light be red exactly once? Use the data to make a prediction.
Here is a summary of the data he got after 200 days.
Traffic light before school Traffic light after school Number of day
red red 25
red green 21
red yellow 17
green red 16
green green 31
green yellow 27
yellow red 22
yellow green 28
yellow yellow 13
Suppose the driver will continue recording the colors for 150 more days.
In how many of these 150 days will the light be red exactly once? Use the data to make a prediction.
1 answer:
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Let
x------> parts produced by the first team <span>according to the plan
</span>y------> parts produced by the second team according to the plan
we know that
x+y=680--------> equation 1
0.20x+0.15y=118--------> equation 2
using a graph tool
see the attached figure
the solution is
x=320
y=360
the answer is
parts produced by the first team according to the plan------> 320
parts produced by the second team according to the plan----> 360
x------> parts produced by the first team <span>according to the plan
</span>y------> parts produced by the second team according to the plan
we know that
x+y=680--------> equation 1
0.20x+0.15y=118--------> equation 2
using a graph tool
see the attached figure
the solution is
x=320
y=360
the answer is
parts produced by the first team according to the plan------> 320
parts produced by the second team according to the plan----> 360