Hello,
mean=1/2*(1+88)*88/88=89/2=44.5
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Answer: d
Step-by-step explanation:
its d
1.
75 km/h
75*20= 1500
Traveled 1500 kilometers
2.
1 mile = 1.60934 km
75/1.60934=
<span>46.6029552487
</span>or 46.6 mph, or below the speed limit
The first step is to calculate what fraction of the counters that Rob has.
Add all the portions together to find the total: 5+6+7= 18
Rob has 5 out of the 18, or 5/18, or 0.278
Next, do the same for the end ratio:
7+9+8= 24 and Rob has 7/24, or 0.292
By comparing his beginning portion (0.278) to his end portion (0.292) it is clear that he has a greater portion of the total counters. Given that the problem states that the number of counters stays the same, Rob must have more counters than he started with.
