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
kondaur [170]
3 years ago
13

Sam is practing long track speed skating at an ice skating rink. The distance around the rink is 250 yards. He has skated around

the rink 4 times so far. How many more yards does he need to skate around the rink to complete 3 miles?
Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

There are 1760 yards in one mile and the rink is 250 yard in perimeter.

This means 3 miles is 5280 yards. 

 

If Sam has already gone around the whole rink 6 times, that means he was traveled a total of 1500 yards.  

Sam has 3780 more yards to travel 3 miles.

This means he needs to do 15.12 more laps around the rink.  Or 16 if you are rounding.

Hope this helps! :)

You might be interested in
The following integral requires a preliminary step such as long division or a change of variables before using the method of par
shtirl [24]

Division yields

\dfrac{x^4+7}{x^3+2x} = x-\dfrac{2x^2-7}{x^3+2x}

Now for partial fractions: you're looking for constants <em>a</em>, <em>b</em>, and <em>c</em> such that

\dfrac{2x^2-7}{x(x^2+2)} = \dfrac ax + \dfrac{bx+c}{x^2+2}

\implies 2x^2 - 7 = a(x^2+2) + (bx+c)x = (a+b)x^2+cx + 2a

which gives <em>a</em> + <em>b</em> = 2, <em>c</em> = 0, and 2<em>a</em> = -7, so that <em>a</em> = -7/2 and <em>b</em> = 11/2. Then

\dfrac{2x^2-7}{x(x^2+2)} = -\dfrac7{2x} + \dfrac{11x}{2(x^2+2)}

Now, in the integral we get

\displaystyle\int\frac{x^4+7}{x^3+2x}\,\mathrm dx = \int\left(x+\frac7{2x} - \frac{11x}{2(x^2+2)}\right)\,\mathrm dx

The first two terms are trivial to integrate. For the third, substitute <em>y</em> = <em>x</em> ² + 2 and d<em>y</em> = 2<em>x</em> d<em>x</em> to get

\displaystyle \int x\,\mathrm dx + \frac72\int\frac{\mathrm dx}x - \frac{11}4 \int\frac{\mathrm dy}y \\\\ =\displaystyle \frac{x^2}2+\frac72\ln|x|-\frac{11}4\ln|y| + C \\\\ =\displaystyle \boxed{\frac{x^2}2 + \frac72\ln|x| - \frac{11}4 \ln(x^2+2) + C}

7 0
2 years ago
Someone help w pre-algebra, smth about proportional data
inessss [21]

Answer:

The answer is no because for 1 hour he gets 20 dollars and for 2 hours he gets 30$ (which is less for working 2 hours). So, if you multiply 2 hours with 20 dollars, you should get 40, not 30. So therefore, it is not proportional. And same for 3 hours: multiply 3 with 20 to get 60, not 50.

6 0
2 years ago
Read 2 more answers
Find the total amount in the compound interest account.
r-ruslan [8.4K]

The final balance is $64,599.38.

The total compound interest is $55,599.38.

6 0
2 years ago
NEED HELP ASAP
Annette [7]

Answer: It would be approximately 2000 ft.

Step-by-step explanation:

8 0
3 years ago
How does probability really work?????
QveST [7]
Probability works by showing the outcome of a chance. For example , there are 2 yellow balls and 3 red balls . the outcome of drawing a yellow ball is 2/5 20% out of 50%
8 0
3 years ago
Read 2 more answers
Other questions:
  • The population of a certain species of fish has a relative growth rate of 1.1% per year. It is estimated that the population in
    6·1 answer
  • What's the answer for 2p+5r=q for p
    14·1 answer
  • How do write 412.638 using expanded form using decimals
    9·1 answer
  • A chef can make 12 omelets in one hour. What is the rate of omelets per minute?
    8·1 answer
  • "a test has 5 multiple choice questions with four choices with one correct answer each. if we just randomly guess on each of the
    12·1 answer
  • Mr. and Mrs. Lopez are putting square tiles on the floor in their bathroom.They can fit 6 rows of 4 tiles in the bathroom.How ma
    15·2 answers
  • PLEASE PLEASE PLEASE HELP! ( show your work please )
    7·1 answer
  • John caught 24 trout and bass while on a fishing trip. The average weight of a trout was 2.5 pounds, and the average weight of a
    14·1 answer
  • F(x)=x^2. What is g(x)?
    7·1 answer
  • Expand the brackets and simplify: 2(5x-y)-3(3x-y)​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!