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
grandymaker [24]
3 years ago
8

Lin runs 5 laps around a track in 6 minutes. c. If Lin runs 21 laps at the same rate, how long does it take her?

Mathematics
2 answers:
horrorfan [7]3 years ago
5 0
126 because if you multiple 21 and 6 it’s gives you 126
Luden [163]3 years ago
3 0

Answer:

It would take her to run <em><u>25.2</u></em> minutes.

Step-by-step explanation:

▪Proportion.

\frac{5 \: laps}{6 \: minutes}  =  \frac{21 \: laps}{x}  \\  \\  \frac{126}{5}  =  \frac{5x}{5}  \\  \\ 25.2 = x

▪Happy To Help <3

You might be interested in
Write the equation of the line that passes through (3, 4) and ( 2, -1) in slope-intercept form
rjkz [21]

\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{-1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-1}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{3}}}\implies \cfrac{-5}{-1}\implies 5 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{5}(x-\stackrel{x_1}{3}) \\\\\\ y-4=5x-15\implies y=5x-11

3 0
3 years ago
Use integration by parts to find the integrals in Exercise.<br> ∫(x+6)ex dx.
skelet666 [1.2K]

Answer:

xe^x+5e^x

Step-by-step explanation:

We have given integral \int (x+6)e^xdx

\int (xe^x+6e^x)dx

\int (I_1+I_2)dx , here I_1=xe^x and I_2=6e^x

Now first integrate I_1

So I_1=\int xe^x

Integrating by part

I_1=x\int e^x-\int e^x\frac{d}{dx}x

I_1=x e^x- e^x

I_2=6\int e^x=6e^x

So I=I_1+I_2=xe^x-e^x+6e^x=xe^x+5e^x

5 0
3 years ago
Salid brought 35 feet of window trim at a hardware store. The trim cost $1.75 per foot including sales tax. If salid paid with a
juin [17]
You multiply 1.75 by 35 then subtract by 100

4 0
3 years ago
Read 2 more answers
Suppose the discrete random variable X has the probability distribution below:
Talja [164]

(a) P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.11 + 0.52 + 0.19 = 0.82

(b) P(X ≥ 1) = P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) = 0.52 + 0.19 + 0.12 + 0.06 = 0.89

(c) µ = 0×0.11 + 1×0.52 + 2×0.19 + 3×0.12 + 4×0.06 = 1.5

(d) σ² = (0²×0.11 + 1²×0.52 + 2²×0.19 + 3²×0.12 + 4²×0.06) - µ² = 1.07

σ = √(σ²) ≈ 1.03

4 0
3 years ago
Round 639,121 to the nearest ten thousand.
VLD [36.1K]

Answer:

640,121

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • In the following shape, two semicircles have been placed at the end of a rectangle whose length is twice its height. Which of th
    15·1 answer
  • What unit of measure would you use to measure length of piece of paper?
    8·1 answer
  • How can knowledge of circles apply to daily life??
    8·1 answer
  • -4/5+4/5=<br> The slash s faction not division it this problem.
    11·1 answer
  • Dakota has $5.38 in her savings accounts . each week she adds $2.92 . how much money does dakota have after five weeks ?
    14·1 answer
  • Please help me I don’t understand
    15·2 answers
  • Which of the following best represent the graph of the inequality shown below?
    5·1 answer
  • 60 Points PLEASE HELP. I have no more points after this lol so help please
    14·2 answers
  • Please I need it ASAP
    10·1 answer
  • Brainiest to whoever right plz
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!