MATHEMATICS COLLEGE

Use the equation below to calculate the average speed for each problem, then complete the data table below. Problem Distance Time Speed Distance/Time 1. Ron walks 22.5 km in 5 hours, find his speed. 22.5 km 5 hours 22.5km/ 5hr= 4.5 km/hour 2. A train covers 168 km in 4 hours. Find its speed. 3. Rachel travelled 240 km in 4 hours by train and then travelled 120 km in 3 hours by car and 3 km in 1/2 hour by cycle. What is the average speed during the whole journey? 4. A car moves from A to B at a speed of 50 km/hr and comes back from B to A at a speed of 30 km/hr. Find its average speed during the journey.
Use the equation below to calculate the average speed for - 1

Answers

Answer 1
Answer:

1. Answer is 4.5 km / hr.

... because you divide the time but the distance so for this question you divide 22.5 by 5 and that's your answer. do the same for every question! hope this helps.

Related Questions

ASAP Find the slope of The ordered pairs (0,-17),(2,13)
4. Simplify the following.3a. 2-X5-:113x5567​
$641.29 is what percent of $986,60? I need this ASAP
The center of the circle is located (3'8), and the circle has a radius that is 5 units long. What is the general form of the equation for the circle
What is 3+2? You have to have a good explanation to your answer.​

The picture shows a carousel. The carousel spins while the horses move up and down. A student determines toeach horse completes one up-down cycle in 30 seconds. The student rides a horse on the carousel for 2 minute
which equals 120 seconds.
raal

Answers

Answer:

4 times

Step-by-step explanation:

Note,

  • 60 seconds = 1 minute
  • 120 seconds = 2 minutes (60*2).

Since the student rode a horse for 120 seconds, to find the number of times the student riding the carousel completed the up-down cycle, we divide it by 30 seconds (which is the duration for the horse to complete one up-down cycle) because the student would be having the same duration as the horse because he was on top the horse.

Hence, we have;

120/30 = 4

Question 3 of 5A basketball has a radius of 4.5 inches. If the
ball is filled with 350 cubic inches of air, how
much more air is needed to fill it completely?
Round to the nearest whole number.

Answers

Answer:

32 cubic inches of air are needed to fill it completely.

Step-by-step explanation:

A basketball has the format of a sphere.

The volume of a sphere with radius r is given by the following equation:

V = (4\pi r^(3))/(3)

In this question:

Radius of 4.5 inches. So the volume, in cubic inches, is:

V = (4\pi*(4.5)^(3))/(3) = 382

The volume of the ball is 382 cubic inches.

350 cubic inches have already been filled.

So 382-350 = 32 cubic inches of air are needed to fill it completely.

HELP MEEEEEEEEEEEEEEEEEEE I DONT GET IT

Answers

The graph goes up by 10 each time. And if we start at the bottom of the graph, and count up to where the line hits another point of the graph. It goes up by 30, and moves right 10. So that means the slope is 3. Hope this helps!

Add the following - 4/9,7/12and - 3/8​

Answers

Answer:

- (17)/(72)

Step-by-step explanation:

- (4)/(9) + (7)/(12) + ( - ( 3)/(8) )

Whenthereis a(+)infrontofanexpressioninparentheses,theexpressionremainsthesame:

- (4)/(9) + (7)/(12) - (3)/(8)

( - 4 * 8 + 7 * 6 - 3 * 9)/(72)

Calculatethesumof difference

( - 32 + 42 - 27)/(72)

(10 - 27)/(72)

- (17)/(72)

Hopethishelps..

Goodluck on your assignment...

Find the sum of 2x2 – 8x — 6 and 9x2 – 8.
Answer:
Submit Answer

Answers

Hence , the sum is 11x^2-8x-14.

WHAT IS A POLYNOMIAL

In mathematics, a polynomial is an expression consisting of indeterminates (also called variables) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

How to Solve?

Given , we need to add 2x^2-8x-6 and 9x^2-8.

So, we can write it as :

2x^2 -8x-6+9x^2-8

Writing like terms together:

= 2x^2+9x^2-8x-6-8

=11x^2-8x-14

Hence , the answer is 11x^2-8x-14.

Learn more about Algebraic expressions :

brainly.com/question/395066

#SPJ2

Answer:f

(x)=x,  g(x)=x3−1f(x)=x4+x3−11x2−5x+30,  g(x)=2x−2f(x)=x2,  g(x)=7x−1

in short ways the answer is  7x−1

ou write a short story, but you want to make sure your work is protected before you post it online. What should you do to help protect your copyright? (Site 1)

Answers

You can add the Copyright symbol. And write a notice below your work saying that
Other Questions
Charlotte had $86. She spent $15 on a ticket to the zoo and then her mom gave her $24. How much money does Charlotte have now? $____
A school psychologist wants to test the effectiveness of a new method of teaching Health. She recruits 600 fourth-grade students and randomly divides them into thw groups. Group 1 is taught by means of the new method, while Group 2 ls taught via traditional methods. The same teacher is assigned to teach both groups. Al the end of the year, an achievement test is administered and the results of the two groups compared ts What is the response variable in this experiment?O A. The score on the achievement test O B. The students' ability in Health ° C.The score of Group 2 on the achievement test O D. The score of Group 1 on the achievement test
Will a truck that is 10 feet wide carrying a load that reaches 12 feet above the ground clear the semielliptical arch on the one-way road that passes under the bridge shown in the figure on the right? 13 ft --- 52 ft It will clear the arch because the height of the archway of the bridge 5 feet from the center is approximately (Round to two decimal places as needed.) feet.
Suppose that the US plans to send a shipment of "rovers" to Mars. These are mobile robots, programmed to collect rock and soil samples, and then return to the landing site. The rovers operate independently of each other. The mean weight a rover is programmed to collect is 50 pounds, and the standard deviation of weights is 5 pounds. Weights collected by rovers are approximately normally distributed. If the US sends 10 rovers, what is the probability that the average weight of rock and soil brought back by these rovers will be between 48 pounds and 52 pounds? What sampling distribution should we use to compute this probability?