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
adell [148]
3 years ago
6

Can someone help ASAP. Please and thank you!!!

Mathematics
1 answer:
djyliett [7]3 years ago
6 0

Hey there! :)

Answer:

≈ $41330

Step-by-step explanation:

Begin by finding the area of the racetrack by subtracting the area of the smaller circle from the larger one.

Calculate the areas of the circles using: A = πr²

Larger circle:

A = π145²

A = 21025π = 66018.5 ft²

Smaller circle:

A = π80²

A = 6400π = 20096 ft²

Subtract the smaller from the larger of the areas:

66018.5 - 20096 = 45922.5 ft²

Divide this by 100 to solve for the amount of asphalt needed:

45922.5 / 100 = 459.225.

Since asphalt costs $90 dollars per 100 ft², then:

459.225 · 90 = $ 41330.25 ≈ $41330 rounded.

You might be interested in
What's the nearest tenth of 1.91
Andre45 [30]
1.91 to the nearest tenth is 1.9
5 0
3 years ago
Matthew's dad hired him to paint 6 wooden patio chairs for $125. It takes him 9 hours to paint all of the chairs. If it takes th
frozen [14]

Given:

Matthew's dad hired him to paint 6 wooden patio chairs for $125.

Time taken by him to paint all of the chairs = 9 hours.

It takes the same amount of time to paint each chair.

To find:

The fraction of an hour does it take Matthew to paint one chair

Solution:

Total time = 9 hours

Total number of chairs = 6

Now, time taken by Matthew to paint one chair is

\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{9}{6}

\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{3}{2}

Therefore, Mattew takes \dfrac{3}{2} of an hour to paint one chair.

Thinking with a model: On dividing the total time by total number of chairs we get time taken by Mattew (in hours) to paint one chair. So, the result represents the fraction of an hour taken by Matthew to paint one chair.

8 0
3 years ago
Is -1/8 greater than -1/10
Alika [10]

Answer:

false

Step-by-step explanation:

-1/8 = -0.125

-1/10 = -0.1<u>00</u>

as it is negative  

-0.125 < -0.1

so it is false

8 0
3 years ago
The world's largest ocean, the Pacific ocean, has an area of about 200,000,000 km^(2) , which can be written as 2 x 10 ^(n) km^(
BlackZzzverrR [31]
N=8. All you have to do is count the amount of numbers after the 2 in 200,000,000. There are 8 numbers after the number 2 which makes n=8.
6 0
3 years ago
Read 2 more answers
According to the empirical rule, if the data form a "bell-shaped curve" (normal distribution), approximately what percent of the
Ann [662]

Answer: B. 95.0

Step-by-step explanation:

In statistics , the famous empirical rule says that " if the data is normally distributed then 68% of the observations will be contained within \pm1 standard deviations from the arithmetic mean, 95% of the observations will be contained within \pm2 standard deviations from the arithmetic mean and 99.7% of the observations will be contained within \pm3 standard deviations from the arithmetic mean".

Hence, B is the correct answer.

3 0
3 years ago
Other questions:
  • A triangular tent door has an area of 15 square feet. The height is five feet. What is the base?
    13·2 answers
  • after 1 year on the job, Grady got a raise from $10.50 per hour to $11.34 per hour. what was the percent increase in his hourly
    12·2 answers
  • Triangle ABC is similar to triangle LMN by the similarity postulate
    6·1 answer
  • Suppose a circle has its center at the origin. What is the equation of the circle
    13·1 answer
  • If one hundred is divide into ten equal parts each part is
    5·1 answer
  • Bro<br> I’m lazy and I don’t wanna do it if someone can do it it would mean a lot
    6·2 answers
  • Jeremiah scored 28 points in yesterday's
    10·2 answers
  • I WILL GIVE BRAINLY HELP ME PLSSS
    10·2 answers
  • I got an answer, but I only got one mark help
    6·2 answers
  • Find the quotient and simplify
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!