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Ierofanga [76]
3 years ago
8

Two students are preparing for a marathon. Hector ran 8 miles in 85 minutes. Mario ran 6 miles in 55 minutes. Who has the faster

average speed?
Mathematics
2 answers:
Stels [109]3 years ago
7 0
formula\ for\ average\ speed= \frac{distance}{time}\\\\
Hector:\\\\
v_H=\frac{8miles}{85\ minutes}\approx0,09\frac{mile}{min}\\\\
Mario:\\\\
v_M=\frac{6miles}{55minutes}=0,1\frac{miles}{min}\\\\
Mario\ has\ faster\ speed.
pishuonlain [190]3 years ago
3 0
Since v=d/t
We can change the times from minutes to hours so that the answers will be in mph (but it isn't necessary)
Hectors speed=8/1.42=5.6mph
Marios speed=6/0.92=6.5mph
Therefore mario has the greater average speed.
Hope this helps :-)
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The solution graph is also attached below.

Step-by-step explanation:

Given

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\frac{1}{3}x+5>10

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The solution graph is also attached below.

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