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Bogdan [553]
3 years ago
9

Mr. Smith drove for 45 minutes at a speed of 40 km/h. He stopped for 15 minutes for a coffee break and then he drove for 2 hours

at a speed of 75 km/h. What was his average speed for the entire journey?
Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer: The answer is 65 5/11

Step-by-step explanation: The first portion would be 30km. Second portion not counting coffee stop would be 150km. Since the average speed is distance/Time it would be 180/Time. Time =2 3/4. Answer is 65 5/11. I hope this is correct.

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What’s the value of x?<br> 3x-24=x+10
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Answer:

x=17

Step-by-step explanation:

3x-24=x+10

Carry over the like terms and put them together. Make the unknowns which are x the subject.

3x-x= 24+10

2x= 34

2x= 34/2

x= 17

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3 years ago
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Natalka [10]
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Starts at 6:15

Note: An hour is 60 minutes.

So an hour after 6:15 is 7:15 and an hour after that is 8:15. Now just add another 10 minutes and you get 8:25.

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3 years ago
If each unit cube has edges of length 1/2 foot what is the volume of the blue outlined prism
postnew [5]

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Step-by-step explanation:

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QveST [7]
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8 0
2 years ago
Can somebody please help me!!
xxMikexx [17]
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To find the value of the (x+10) angle, just substitute 125 for x and solve.

125+10=135
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3 years ago
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