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
Flauer [41]
2 years ago
9

If I run 6 m/s I can finish a lap of a track in 4 minutes. If I run at 12 m/s, how long will it now take?

Mathematics
1 answer:
Fofino [41]2 years ago
3 0

Answer:

2 minutes

Step-by-step explanation:

When you double the speed, the time needed to finish the lap would halve.

6 *2 =12

4/2 =2

You might be interested in
How do you express 43.7% as a decimal?
maksim [4K]
43.7 % is equivalent to 0.437 .
8 0
3 years ago
Read 2 more answers
Earl gets a commission of 20% on all sales. He sold $1,580.00 worth of goods. What was the amount of his paycheck?
Anni [7]
The answwer

20%  of <span>$1,580.00 is   X= 1,580 x20/ 100 = $316
</span> 
the amount of his paycheck was <span> $316</span>



7 0
3 years ago
Read 2 more answers
Molly opened a savings account with a one‐time deposit of $100 that will be left in the account for at least 5 years. The saving
Anettt [7]

The amount of interest Molly will earn after 5 years on a deposit of \$100 compounded annually over 5 years is \$27.63

First, we need to find the future value of her investment, then we subtract the original deposit from it to get the amount of interest she will get at the end of 5 years.

The future value of an investment that is compounded annually is given by

A=P(1+r)^t

where

A=\text{Amount of money in Molly's account after 5 years}\\P=\text{Molly's initial deposit into her account}=\$500\\r=\text{The annual interest rate as a decimal}=0.05\\t=\text{The time the money is invested (in years)}=5

Substituting the available values into the formula and solving

A=100(1+0.05)^5=100(1.05)^5 \approx \$ 127.63

The interest Molly will earn after 5 years is

A-P=\$127.63-\$100=\$27.63

Therefore, the amount of interest Molly will earn after 5 years on a deposit of \$100 compounded annually over 5 years is \$27.63

Learn more about compound interest here: brainly.com/question/21270833

8 0
3 years ago
Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was
Ivan

Answer: \pm0.1706

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of \alpha:0.05 : z_{\alpha/2}= 1.96

Sample mean : \overline{x}=2.5

Standard deviation : \sigma= 0.5

We assume that this is a normal distribution.

Margin of error : E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706

Hence, the  margin of error is \pm0.1706

7 0
3 years ago
9. Find the dimensions of the<br>4 triangular faces of the pyramid.<br>(Height is 55.5 ft)<br>​
Minchanka [31]

Answer:

Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\

Step-by-step explanation:

We have a 4-sided triangular pyramid , where

Q=\frac{\pi}{2}*H\\P=Q*\sqrt{\frac{1}{2}+\frac{4}{\pi ^{2}}}\\Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\

3 0
3 years ago
Other questions:
  • NEED ANSWER FAST!!!!!<br> F(x) = x 2 + 2 <br> F(x2) =
    6·1 answer
  • How do you prove that AM=1/2AB if what is given is M is the midpoint of line AB? 7 steps.
    8·1 answer
  • A triangular sandbox has angles whose measures are in the ratio 3:7:2. What is the measure of the smallest angle? a. 10° b. 30°
    10·1 answer
  • Recursive formula for a geometric sequence with a starting value of 8 and a common ratio of 5
    5·1 answer
  • Find the missing side using the pythagorean theorem.<br> 9 in<br> 12 in<br> x =
    15·1 answer
  • Which statement describes the relationship between the length of a rain delay and the number of hours of rainfall?
    10·1 answer
  • In finding the solution of the equation 5 - 3x = 2x + 9, 3x is added to both sides of the equation first. Which of the following
    15·2 answers
  • Use the equation editor below to state how many minutes there are in 1 10 hour. Then, calculate how many minutes are equal to 5
    5·1 answer
  • Q: Solve by the Extraction of Roots method: -<br><br> -5x²=-50
    14·1 answer
  • The sum of three consecutive integers is -54.<br> What are the integers?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!