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3 years ago

a bus trip covers 191 km and takes 4 hours and 15 minutes, what is the average speed of the bus in kilometers per hour

Mathematics

1 answer:

umka21 [38]3 years ago

6 0

Answer: 44,94 km/h

Step-by-step explanation: 15 minutes is a quarter of hour. So we can write 4h + (1/4)h = 17/4 = 4,25 h.

As the average speed is calculated dividing distance by time, the result is 191/ 4,25 = 44,94 km/h.

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When 2 fractions refer to the same whole and have the same denominator explain why you can compare only the numerators

Mrrafil [7]

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3 years ago

If g(x) = 4x^2 - 16 were shifted 7 units to the right and 3 down, what would the

Kitty [74]

Answer:

The new equation is $h(x)=4(x-7)^2-19$

Step-by-step explanation:

Given : Function $g(x) = 4x^2 - 16$ were shifted 7 units to the right and 3 down.

To find : What would the new equation be?

Solution :

Shifting to the right with 'a' unit is

f(x)→f(x-a)

So, shifting g(x) 7 units to the right is

$h(x) = 4(x-7)^2-16$

Shifting to the down with 'b' unit is

f(x)→f(x)-b

So, shifting g(x) 3 units down is

$h(x)=(4(x-7)^2-16)-3$

$h(x)=4(x-7)^2-19$

The new equation is $h(x)=4(x-7)^2-19$

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3 years ago

Write a proof that shows how 45 and 4.5 have a factor of 10

vovikov84 [41]

Answer:

When you move the decimal point one place to the left, you are moving the second by a factor of 10.

Step-by-step explanation:

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You have a bag that contains 8 yellow marbles, 6 green marbles, and 5 red marbles.

nlexa [21]

Answer is 26.31%

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Read 2 more answers

5+3.2n-4.8n=simplify the expression

dmitriy555 [2]

Answer:

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Step-by-step explanation:

5+3.2n-4.8n=5-1.6n

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