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Lorico [155]
3 years ago
8

ASAP plzzzz help I need answerssss

Mathematics
1 answer:
fiasKO [112]3 years ago
3 0
A] David's speed during the period:
i] AB
speed=distance/time
time taken between AB=0.5 hours
distance=20 km
thus
speed=20/0.5=40 km/h

ii]BC
time taken between BC=1.5 hours
distance=20
speed=20/1.5=13 1/3 km/h


b] Average speed for the entire time will be:
average speed=(total distance)/(total time)
total distance=(20+20+20)=60 km
total time=3 hours
thus
average speed=60/3=20 km/h


c] David's distance 2 hours and 15 minutes from the starting point was:
 distance=20+20+10=50 km
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3 years ago
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Answer:

Step-by-step explanation:

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6 0
3 years ago
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Brums [2.3K]

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5-1-9/3-9 What do I do?
Contact [7]
Rewrite it to simplify using order of operations.

P E M D A S
() ^2 × ÷ + -

So nw it's
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no now it's
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Step-by-step explanation:

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