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
marta [7]
3 years ago
14

I have a kit for constructing a chicken coop. The kit comes with 10-foot long beams. The instructions say to cut each beam into

two pieces such that one piece is 3 times the length of the other. How many feet long should the long piece be?
Mathematics
1 answer:
Virty [35]3 years ago
7 0
It would be 50 but you solve it
You might be interested in
67000000 in scientific notation
yan [13]

Answer:

6.7 * 10^7

Step-by-step explanation:

7 0
4 years ago
It is estimated that t-weeks into a semester, the average amount of sleep a college math student gets per day S(t) decreases at
goldenfox [79]

Answer:

s(15)= \frac{-3}{2} e^{15^{2} } +9.6

Step-by-step explanation:

Before to getting started ,we have to consider the function which  represents  sleep decline rate S'(t) =-3te^{t^{2} } \\

Since  this function is interpreted in this case as a rate of change, we can deduce this funcion is the first derivative of the function of  average amount of sleep (S(t)).

In order to find S(t), we will integrate S'(t)

\int\limits^ {} -3t3e^{t^{2} } \, dx \\

This case corresponds to intergration by substitution  

Substituting u=x^{2} \\

Computting the differential of u

\frac{du}{dt} =2tdt\\

Now, let's go back to our integral and write it in terms of u, using both definition of u and its defferential.

\int\limits^{}-3te^{u}  \, \frac{1}{2t}du  \\\\\int\limits^{}\frac{-3}{2} e^{u}du\\

The integral  of a exponential function is itself. So the result is:

\frac{-3}{2} e^{u} +c

Now substitute u back in:

\frac{-3}{2} e^{t^{2} } +c

This answer correspond to function of average amount of sleep.

We know that when the semester begins (t=0) , math students sleep an average of 8.1 hours per day so we will use this info in order to find the value of c.

s(0)=\frac{-3}{2} e^{0^{2} } +c=8.1\\\\\frac{-3}{2} +c=8.1

Solve this equation

c=8.1+\frac{3}{2}

c=9.6

Replacing  the value of c on S(t)

S(t)= \frac{-3}{2} e^{t^{2} } +9.6

Now, let's to find the average of amount of sleep   when 15 weeks has elapsed since the start date of the semester.

s(15)= \frac{-3}{2} e^{15^{2} } +9.6

4 0
3 years ago
Giselle has $40 to spend on parking this month.
Blababa [14]

Answer:22.5 dollars

Step-by-step explanation:

2.5 times 9 equals 22.5

6 0
3 years ago
a jet airliner flies 4,100 km from New York City to San Francisco in 4.25 h. What is its average speed?
QveST [7]
4,100/4.25 is 964.71 km/h
4 0
3 years ago
Read 2 more answers
Andrea writes a down a number , k. I write down a number that is 4 less than 5 times Andrea's number. If the sum of our numbers
devlian [24]

Givens

Andrea: K

Me: 5k - 4

Sum

k + 5k - 4 = 14

Solve

6k - 4 = 14              Add 4 to both side.

6k - 4 + 4 = 14 + 4

6K = 18                  Divide by 6

k = 18/6

k = 3

7 0
3 years ago
Other questions:
  • The school supply store is selling two different sizes of similar folders. The smaller folder is 6 inches wide and 9 inches tall
    5·2 answers
  • Find the roots 3x^2-3x-4=0
    7·1 answer
  • A sphere has a radius of 3 ft. What is the volume of the sphere? Give the exact value in terms of Pi.
    9·2 answers
  • Calculators were purchased at $70 per dozen and sold at $20 for three calculators. What is the profit on six dozen calculators?
    7·1 answer
  • How many places do you need to move the decimal to the right to write the number below in scientific notation?
    14·2 answers
  • The 5th grade class sells items from the snack cart each week to earn money for camp. They sold 70 items to the 7th grade class
    12·2 answers
  • Find the area.<br><br> 81 cm 2<br> 72 cm 2<br> 54 cm 2<br> 63 cm 2
    6·2 answers
  • The deck that Amos is building is in the shape of a parallelogram, DGRY. The measure of
    5·1 answer
  • Given f(x), match each expression to its correct value
    14·2 answers
  • In a scientific study there are 7 guinea pigs, 4 of which are pregnant. If 3 are selected at random without replacement, find th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!