1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
trapecia [35]
3 years ago
12

A boy rolls down a hill on a skateboard. At time = 4 seconds, that boy has rolled 6 meters from the top of the hill. At time = 7

seconds, the boy has rolled to a distance of 30 meters. What is his average speed?
Mathematics
1 answer:
spayn [35]3 years ago
3 0

Answer:

His average speed is 4.75 m/s

Step-by-step explanation:

Here, we are interested in calculating the average speed of the boy.

At time t = 4 seconds, total distance traveled = 6 meters

The average speed here is distance/time = 6/4 = 1.5 m/s

Now at time 30 7 seconds , he has rolled 30 meters

What this actually means is that for the next 3 seconds after the initial 4 seconds, he rolled a total distance of 30-6 = 24 meters. Hence, he rolled 24 meters in the next three seconds

So mathematically, his average speed for the second part of the rolling is 24/3 = 8 meters per second

Conclusively therefore , his average speed will be (1.5 + 8)/2 = 9.5/2 = 4.75 meters per second

You might be interested in
If you ask the first 50 females who enter a restaurant to complete a survey about their experience, who is the sample?
Anettt [7]

Answer:

the first girl

Step-by-step explanation:

because the first girl to take the survey is a sample but the rest that follows are just extras(can i get brainliest pls)

6 0
3 years ago
Read 2 more answers
PLEASE HELP? IS THIS RIGHT OR NOT????
zepelin [54]
The answer is actually D. The limit on the left side is computing the derivative at x = a. The right side value of 7 tells us that f ' (a) = 7
3 0
3 years ago
Find the volume of the rectangular prism
HACTEHA [7]

Answer:

421.875

Step-by-step explanation:

because the formula of the rectangular prism is l*w*h

7 0
3 years ago
Read 2 more answers
Never mind my question but free brainiest
Sav [38]

What is your question?

6 0
3 years ago
Read 2 more answers
Find the area and perimeter of the square 6 meters
Mkey [24]
<h2>AREA</h2>

The formula for finding area of a square is:

length \times width

In a square, all the sides are the same. Each side is 6 meters long. Plug in 6 to the formula.

length \times width \rightarrow 6 \times 6

Multiply:

6 \times 6 = 36

The area of the square is 36 m²

<h2>PERIMETER</h2>

Perimeter is the distance around a shape. To find perimeter, you have to add all all the side lengths. The formula for finding perimeter is:

2(l) \times 2(w)

Remember that squares have 4 sides, and all length(s) and width(s) measure the same. The length and width measure the same. Plug in the numbers into the formula:

2(l) + 2(w) \rightarrow 2(6) + 2(6)

Simplify:

2(6) + 2(6) = 12 + 12

Add:

12 + 12 = 24

The perimeter of the square is 24 m

7 0
3 years ago
Other questions:
  • 5.
    5·1 answer
  • A Student Who Is 60 Inches Tall Measured Shadows To Find The Height Of A Tree. The Students Shadow Was 24 Inches Long, And The S
    15·1 answer
  • I need your help is this all right or worng
    11·1 answer
  • Simplify 1/2√40<br> A) √10<br> B) 2√10<br> C) 4√10
    6·2 answers
  • Find m <br> A. 40°<br> B. 80°<br> C. 130°<br> D. 260°
    6·2 answers
  • Janet is collecting coins. She starts with 6 coins. The next week she has 10 coins. In two weeks she has 14 coins. If this patte
    12·1 answer
  • Find the length of the third side. If necessary, round to the nearest tenth. 24 28
    11·1 answer
  • Answer fast ..................​
    12·1 answer
  • at midnight the tempatire was -5°F. At noon the tempature was 24°F which expression represents the increase in tempature?​
    5·1 answer
  • USA test prep please answer
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!