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Mila [183]
3 years ago
11

You travel 80 km in the first 1.00 hour of a trip, 50 km in the next 0.50 hours, and 40 km in the final 0.25 hours. Calculate yo

ur average speed for the entire trip?
Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

The average speed is the ratio between the distance covered, and the time elapsed to cover that distance.

The total distance is the sum of the three distances covered:

d = 80km+50km+40km = 170km

Similarly, the total time elapsed is

1h + 0.5h + 0.25h = 1.75h

So, althought you didn't always travelled with the same speed, you globally covered 170km in 1.75 hours. This leads to an average speed of

\dfrac{170\text{km}}{1.75\text{h}} \approx 97.14 \dfrac{\text{km}}{\text{h}}

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The area of a rectangle is 91 square inches. If the length of the rectangle is 1 less than twice its width, write an equation th
Ahat [919]

The following equation can be used to calculate the width, w, of the rectangle with the specified area: 2w²- w - 91 = 0.

<h3>What is a Rectangle's Area?</h3>

rectangle area = length width

Multiply the length by the width to obtain the area of a rectangle. The formula is as follows: A = L * W where A is the area, L denotes the length, W denotes the width, and * denotes multiplication. where A denotes area, s denotes side length, and implies multiply.

Given,

Rectangle area = 91 in.

2 w = width

The rectangle's length equals 2w - 1.

Using the area formula, the equation for calculating w would be: (2w - 1)(w) = 91.

2w² - w - 91 = 0

As a result, the equation for determining the width, w, of the rectangle with the specified area is: 2w² - w - 91 = 0.

To know more about area, visit:

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5 0
1 year ago
Please help me find what ? Is
kotegsom [21]

Answer:

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4 0
3 years ago
8x-5y= 14<br> – 5х+бу = -3
podryga [215]

Answer:

y= 34/23

x=  123/46

Step-by-step explanation:

Solve for x

8x-5y= 14

x= 14/8 +5/8y

Sub x into second equation

– 5х+бу = -3

-5(14/8 +5/8y) + 6y= -3

-29/4 +23/8y = -3

y= 34/23

Sub y into any equation and solve for x

8x=483/23

x= 123/46

4 0
3 years ago
What is the rectangular form of 12(cos(Pi) + isin(Pi))?<br><br> 12<br> -12<br> 12 + i<br> –12 + i
aliya0001 [1]

Answer:

B, -12

Step-by-step explanation:

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8 0
3 years ago
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A population of rabbits triples every month.the population starts with two rabbits.how many rabbits are there after 3 month's
Tresset [83]
The answer would be 54. Because you start with 2.
2x3 = 6
6x3 = 18
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Each month it triples so you continue
to add 3 to each result.
7 0
3 years ago
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