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lubasha [3.4K]
3 years ago
12

a car travels the first 15 km of the journey at an average speed 60km/h and the remaining 40 km at an average speed of 30 km/h f

ind the average speed of the whole journey
Mathematics
1 answer:
rewona [7]3 years ago
3 0

Answer:

the average speed of the whole journey is 45 km/h

Step-by-step explanation:

The computation of the average speed of the whole journey is shown below:

Average speed is

= (Speed 1 + speed 2) ÷ 2

= (60 km/h + 30 km/h) ÷ 2

= 90 km/h ÷ 2

= 45 km/h

Hence, the average speed of the whole journey is 45 km/h

We simply ignored the distance as it is not relevant for the given situation

The same would be considered

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8 0
3 years ago
In a college of 400 students, 45% are girls. Of the boys, 30% are football
Mashcka [7]
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5 0
3 years ago
Mailboxes Plus sends packages overnight for $5 plus $0.25 per ounce. United Packages charges $2 plus $0.35 per ounce. Me. Molina
scZoUnD [109]

Answer:

30 ounces

Step-by-step explanation:

You first have to write out the two equations:

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So, 30 ounces is your answer!

You can check by plugging 30 back into the equations to make sure that they are equal to each other.

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5 0
3 years ago
Does 4x-28=2x-6 have distributive property
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