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
algol13
3 years ago
9

thomas started a lawn-mowing business in Florida, in which he has x lawns on his route. his costs are $6 per lawn for fertilizer

and $14 per lawn for labor. a) if he charges $25 per lawn, write a polynomial that represents his weekly profit. b) if thomas mows 40 lawns in a week, what is his weekly profit? c) if thomas mows 40 lawns per week, what is his annual profit?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0

Number of lawn mowing = x.

His cost per lawn for fertilizer = $6.

His cost per lawn for labor = $14.

Total cost per lawn for fertilizer and  per lawn for labor for him = 6+14 = $20.

He charges = $25 per lawn.

So, profit per lawn = 25 - 20 = $5.

Therefore, for mowing x number lawn could be represented by polynomial that represents his weekly profit.

<h3>a) P(x) = 5x.</h3>

b) For mowing 40 lawns per week total profit would be

P(40) = 5(40) = $200.

c) Number of weeks an year = 52.

Therefore,

<h3>Annual profit is 52 * 200 = $10400.</h3>
You might be interested in
Linda goes water-skiing one sunny afternoon. After skiing for 15 min, she signals to the driver of the boat to take her back to
trasher [3.6K]
60 = a * (-30)^2
a = 1/15
So y = (1/15)x^2


abc)
The derivative of this function is 2x/15. This is the slope of a tangent at that point.
If Linda lets go at some point along the parabola with coordinates (t, t^2 / 15), then she will travel along a line that was TANGENT to the parabola at that point.
Since that line has slope 2t/15, we can determine equation of line using point-slope formula:
y = m(x-x0) + y0
y = 2t/15 * (x - t) + (1/15)t^2
Plug in the x-coordinate "t" that was given for any point.


d)
We are looking for some x-coordinate "t" of a point on the parabola that holds the tangent line that passes through the dock at point (30, 30).
So, use our equation for a general tangent picked at point (t, t^2 / 15):
y = 2t/15 * (x - t) + (1/15)t^2
And plug in the condition that it must satisfy x=30, y=30.
30 = 2t/15 * (30 - t) + (1/15)t^2
t = 30 ± 2√15 = 8.79 or 51.21
The larger solution does in fact work for a tangent that passes through the dock, but it's not important for us because she would have to travel in reverse to get to the dock from that point.
So the only solution is she needs to let go x = 8.79 m east and y = 5.15 m north of the vertex.
4 0
3 years ago
Please Help Me I Need Finish This Tonight
vladimir2022 [97]
1) a- rectangle
    b- same place you started, facing west
2) a- right triangle
    b- parallelogram
    c- not sure the specific name they are looking for...
    * also have no clue what a recipe is in terms of this lol
3) a- square
    b- rectangle, depending on the length of the segments and their distance  
    apart
4) not sure

5 0
3 years ago
Name the angle that is supplementary to &lt; COB 1. AOF 2.COD 3.BOF 4.DOC
Travka [436]
The angle that is supplementary to <COB is one that is next to it (in some relation)
and when you add the two angles together, they shall equal 180°.

Hope this will help 
5 0
3 years ago
How can you use place value to describe how 0.05 and 0.005 compare
zvonat [6]
<span>0.05 is 10 times greater than 0.005</span>
6 0
3 years ago
Read 2 more answers
In a certain country, the car license plate formed by 4 numbers from the digits 1-9 followed by 3 letters from the alphabet. How
andriy [413]

Answer:

78,624,000 license plates

Step-by-step explanation:

For each of the 4 numbers, we have the following possibilities:

First number: 10 digits possible

Second number: 9 digits possible (one used)

Third number: 8 digits possible (two used)

Fourth number: 7 digits possible (three used)

For each of the 3 letters, we have the following possibilities:

First letter: 26 digits possible

Second letter: 25 digits possible (one used)

Third letter: 24 digits possible (two used)

The total number of license plates is the product of all these possibilities:

Number of plates = 10 * 9 * 8 * 7 * 26 * 25 * 24 = 78,624,000 license plates

7 0
2 years ago
Other questions:
  • Find the slope of 8x+2y=96
    9·1 answer
  • Stefa's family driving across the country. They have already traveled 1700 miles of the 2200 trip.how much farther do they need
    11·1 answer
  • What are the x-intercept of sin(x)?
    8·1 answer
  • Geometry what does x=?
    9·1 answer
  • At which times could rory phone have been plugged into the charger?select three options
    10·1 answer
  • The 22 students in Mr. Byers 6th grade class each donated $5.00 for Mr. Byers' end of year gift. When Jessica went to purchase t
    15·2 answers
  • Is the value of the first 7 ten times as great as the value of the second 7 in in 7,027
    7·1 answer
  • What's the sum of 6+y
    11·1 answer
  • Will give crown will post one more
    12·2 answers
  • What is the measure of ZP<br> 609<br> x 80°<br> F<br> 40°<br> H<br> 100<br> 80<br> 90°<br> 40°
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!