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Tanya [424]
3 years ago
5

Joe runs one lap around a track in 80 seconds. Joe and Jim start at the same point and run the track in opposite directions. The

y meet in 30 seconds. How long does it take Jim to run the lap?
Mathematics
1 answer:
inysia [295]3 years ago
6 0
Joe runs one lap around a track in 80 seconds. Joe and Jim meet after 30 seconds.We know how long does it take for Joe to run one lap, so we can calculate what distance he runs in 30 seconds:
He runs half lap for 40 seconds. He runs quarter lap for 20 minutes and he runs 1/8 lap for ten minutes. So for 30 seconds he runs 3 * 1/8 lap=3/8 lap.
Because Jim runs in opposite direction this means that he will meat with Joe at 1-3/8=5/8 lap. So, Jim runs 5/8 lap for 30 seconds.
1/8 lap Jim runs for 30/5=6 seconds, so Jim needs 8*6=48 seconds to run the lap.
 After 30 seconds Joe has run e runs 
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IRISSAK [1]

Answer:

.08cm or 0.08cm

Step-by-step explanation:

First of all, we can see that 20mm is in millimeters, not centimeters.

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There are 10 mm in 1 cm, so I multiply all of the values in cm by 10.

So now, we have that the volume is 1760mm, the length is 110mm, and the width is 20mm.

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To solve for h:

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3 years ago
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3 years ago
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arsen [322]

Answer:

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Step-by-step explanation:

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step two

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