The mode is the number which occurs the most.
# : How many times it occurs
2 : 2
3 : 5
6 : 1
9 : 1
This means 3 is the mode. The range is the highest number - the lowest number
The #'s in order : 2, 3, 6, 9
Then the range would be 9 - 2 which is 7
Hope that helped.
Multiplying the first equation by -2 results in -6x + 4y = -24.
Adding this result to the second equation:
<span>6x-4y=24
</span>-6x + 4y = -24
------------------
0 = 0
There are an infinite number of solutions, since the 2 given equations represent collinear lines.
Answer:
the number of miles travelled in four hours in the case when she travelled same miles number each hour is 240 miles
Step-by-step explanation:
The computation of the number of miles travelled in four hours in the case when she travelled same miles number each hour is shown below:
= Number of miles × given number of hours
= 60 miles × 4 hours
= 240 mile
Hence, the number of miles travelled in four hours in the case when she travelled same miles number each hour is 240 miles
So first write an inequality
360 + 90m > 810
-360 -360
90m > 450
÷90 ÷90
m > 5
As you can see, 4 of the 24 students don't partecipate in any activity. This clearly implies a ratio of 4:24, or 1:6.
We could infer that this ratio holds for the whole school, or even for all the boys and girls of that age.
That's the point of surveys and inferring: you gather data about a relatively small group, and then assume that the proportions you have are valid for a much larger group.
That's why it is important that the group that you survey is balanced and unbiased.
