The mean speed of the 100 cars is 55.4
<h3>How to determine the mean?</h3>
The table of values is given as:
Speed (MPH) Cars
30-39 5
40-49 18
50-59 50
60-69 17
70-79 10
Rewrite the frequency table to include the class midpoints
x f
34.5 5
44.5 18
54.5 50
64.5 17
74.5 10
The mean speed is then calculated as:
So, we have:
Evaluate
Hence, the mean speed is 55.4
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In a parallelogram, the opposite angles are equal and the sum of the angles is 360 degrees.
W = Z and Y = X
3y = 3x
Y = X = y
3y + y + 3x + x = 360
3x + x + 3x + x = 360
8x = 360
x = 360/8 = 45
Therefore, x = 45; y = 45
46.5 is higher than 5.2
<h3>
Comparison of height</h3>
Note that:
The larger the magnitude(value) of the heights given the larger the heights
Units are not added to the values representing each height
By carefully considering the heights given:
5.2 is a lesser value than 46.5
Since 46.6 > 5.2, we can conclude that 46.5 is higher than 5.2
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Answer:
A
Step-by-step explanation:
1
1 " a number x" →x.
2
2 "less than a number x" means to subtract →x−
3
3 "8 less than a number x" means to subtract →x−8.
Answer:
term
Step-by-step explanation:
