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yulyashka [42]
2 years ago
12

a plane took 3 hours and 33 minutes to finish a journey. if the distance of the journey was 2840 miles, at what average speed di

d the plane travel in miles per hour.
Mathematics
1 answer:
likoan [24]2 years ago
4 0

Answer:

The average speed of the plain was 800 miles/h.

Step-by-step explanation:

To solve this problem we first need to convert the time the tain took to finish the journey to hours. To do that we will divide the part that is in minutes by 60 and sum to the part that is in hours, we have:

time = 3 + 33/60 = 3 + 0.55 = 3.55 hours

The average speed is given by the following formula:

average speed = distance/time

average speed = 2840/3.55 = 800 miles/h

The average speed of the plain was 800 miles/h.

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12(7 + 6x)=84+72x

12 + 7 + 6x=19+x

wee see that

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5 0
3 years ago
Read 2 more answers
Two of your friends go bowling. One friend rents a pair of bowling shoes for $3 and bowls 3 games. The other friend brings his o
Nesterboy [21]

Answer: The cost of each game is $2.50

Step-by-step explanation:

Let's find the equations for each friend:

Friend 1:

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This friend buys a soda for $0.50, and he plays 4 games, remember that the cost of each game was X. then this friend pays:

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And we know that both friends pay the exact same amount, then we can write:

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We need to isolate X, then we can move all the terms with X to the right, and all the terms without X to the left:

$3 - $0.50 = 4*X - 3*X

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4 0
2 years ago
Please help.
ryzh [129]

Answer:

E and D

Step-by-step explanation:

3 0
3 years ago
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shusha [124]
The given expression is: 4 x^{2} -5

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The constant term is -5. 
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7 0
3 years ago
What is the end behavior of the graph?
hichkok12 [17]
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