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
Bess [88]
3 years ago
13

A machine that cost £35,000 is operated 8 hours a day in a 5-day week but one hour each day is used for test purposes. For use o

f the machine there are three scales of charges, the first at the rate of £5 an hour for private use, the second at £15 an hour for research work and the third at £40 an hour for commercial work. It is estimated that the number of hours charged at the first, second and third rates are in ratios 4:2:1. What percentage of total receipts do receipts from commercial work represent?
Mathematics
1 answer:
maks197457 [2]3 years ago
5 0
Total ratio = 4 + 2 + 1 = 7 

Unit of one ratio = 35/7 = 5
So, Number of Hours for commercial work = 5(1) = 5

Total receipt = 20 * 5  +  15 * 10  + 1 * 40 = 100 + 150 + 40 = 290
<span>Commercial work receipt = 1 * 40 = 40

So, % = 40/290 * 100

= 400/29
= 13.79%

In short, Your Answer would be: 13.79%

Hope this helps!

</span>
You might be interested in
Help me quick please it’s due today!!!!
Bess [88]
Y=3/2x+1. The slope is change in y I’ve ether change in x (rise over run). And the y intercept is (0,1).
7 0
3 years ago
a library has a ratio of 5:3 fiction books to non-fiction bookd if the library has 150 ffiction books how many non-fiction books
KiRa [710]
The library would have 90 non-fiction books.
8 0
3 years ago
Would it be 6x-3 or 6x^2-3? Composite function
dangina [55]

g(x) = 3x

g(x) = 3( x )

g( f(x) ) = 3( f(x) ) ... replace every x with f(x)

g( f(x) ) = 3( 2x-1 ) .... plug in f(x) = 2x-1

g( f(x) ) = 3( 2x) + 3( -1 ) ... distribute

g( f(x) ) = 6x - 3

You are correct in saying D is the answer

6 0
3 years ago
Multiply the polynomials.<br> (8x2 + 6x + 8)(6x – 5)
makvit [3.9K]

Answer:

48x^3 -4x^2 + 18x -40

Step-by-step explanation:

multiply 8x^2 by 6x and -5 ➡ 48x^3 - 40x^2

multiply 6x by 6x and -5 ➡ 36x^2 -30x

multiply 8 by 6x and -5 ➡ 48x -40

now add the like terms

48x^3 - 40x^2 + 36x^2 -30x + 48x -40 ➡48x^3 -4x^2 + 18x -40

6 0
3 years ago
Read 2 more answers
Let’s figure this out. I need sum help.
tino4ka555 [31]

Answer:

48/25

Step-by-step explanation:

dividing fractions is multiplying by reciprocal of second numbers so (6/5)/(5/8)=(6/5)*(8/5)so (6*8)/(5*5)=48/25

7 0
3 years ago
Read 2 more answers
Other questions:
  • The rectangle has a length of -2x + 10 and a width of 10. a) Find the area of the rectangle and simplify.​
    7·1 answer
  • Given the following diagram, name an obtuse angle.<br><br> ∠ APW<br> ∠ WPB<br> ∠ APZ<br> ∠ ZPW
    6·2 answers
  • 6a-11=4a+1 someone plz help mehhhhh!!
    5·2 answers
  • The ratio of boys to girls in a class is 5:7. There are 36 students in the class. How many students are boys?
    14·2 answers
  • Help!!!!!<br> ASAP!!!!!!!
    5·1 answer
  • Jimmy Neutron is building a skateboarding ramp that is 16 inches high. The angle formed by the ramp and the ground is 21 degrees
    12·1 answer
  • Please help me at least one of them number it!
    15·1 answer
  • Marcus solved a problem and found out that 190% of 20 is 380. Is he correct
    13·2 answers
  • What is the difference of 5 and 2/5? Show your work.
    13·1 answer
  • Please help meeeeeee
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!