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yaroslaw [1]
3 years ago
12

A train travels 95 kilometers in 1 hours, and then 97 kilometers in 1 hours. What is its average speed?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
8 0
Average speed is given by [Total Distance] ÷ [Total Time]

Average speed = \frac{95+97}{1+1} = \frac{192}{2}=96 km/hour
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Answer all for 10 poinsy
fredd [130]
1)    11/3   2)   23/5     3)  35/8     4)  13/6    


5)  6 2/5    6)    6 1/3    7)   3 3/4     8)  5 1/10


Hope this helps!
6 0
3 years ago
Quotien of 6x^4-15x^3-2x^2-10x-4÷3x^2+2
Pachacha [2.7K]

Answer: (6x^4 - 15x^3 - 2x^2 - 10x - 4) ÷ (3x^2 + 2)

= (6x^4 - 15x^3 + 4x^2 - 6x^2 - 10x - 4) ÷ (3x^2 + 2)

= (6x^4 + 4x^2 - 15x^3  - 10x - 6x^2 - 4) ÷ (3x^2 + 2)

= 2x^2(3x^2 + 2) - 5x(3x^2 + 2) - 2(3x^2 + 2) ÷ (3x^2 + 2)

= (3x^2 + 2)(2x^2 - 5x - 2) ÷ (3x^2 + 2)

= 2x^2 - 5x - 2               Ans.

I hope this helped!!! NO HATE COMMENTS IF I WAS WRONG!!!

7 0
3 years ago
In the year 2005, a person bought a new car for $24500. For each consecutive year
Dafna1 [17]
$20090

because, in three years it would have depreciated by 18% (9%*3=18) so you would subtract 18% off of $24500
7 0
3 years ago
Read 2 more answers
the area of a circle is 81 pi m^2. what is the circumference, in meters? express your answer in terms of pi.
mestny [16]
<h3>Answer:    18pi</h3>

============================================================

Explanation:

The area 81pi square meters leads to the radius 9 meters

Use the formula A = pi*r^2 to see why this is the case. You plug in A = 81pi and solve for r to get r = 9.

-----------------

Once you know the radius, you can determine the circumference C

C = 2*pi*r

C = 2*pi*9

C = 2*9*pi

C = 18pi

The circumference is the perimeter, or distance, around the circle.

8 0
3 years ago
What would my GPA be? Here are my grades.
marta [7]
That is approximately, in order, a C, a C, a B, a D, an A, a B, and an A.

In grade points that is a 2, a 2, a 3, a 1, a 4, a 3, and a 4.

The average of those numbers is about 2.7, so you have a 2.7.

You can raise that by bringing up the D as it is an outlier here.
4 0
3 years ago
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