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lapo4ka [179]
3 years ago
14

The cost price of 16 notebooks is equal to the selling price of 12 notebooks.Find the gain per cent.

Mathematics
1 answer:
madam [21]3 years ago
5 0

Answer:

Step-by-step explanation:

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Solve for n. 5/30= n/60
drek231 [11]
N=10 ...................................
6 0
3 years ago
Read 2 more answers
A grocery delivery service charges $0.80 per mile and a set fee of $5.40.
babunello [35]
A would be the correct answer! because x represents the number of miles (charged at .8) and 5.40 is a flat rate 
4 0
3 years ago
18n squared + 57n -10
aniked [119]
Most people use the decomposition method but i dont know how to do that so i use the Joes method a method similar to decomp. but easier.
canadian way

Find gcf: None
complet trinomial: 18n^2+57-10
find the product=10(18)
                       =-180
find the sum     =57
-3 and 60 goes into both meaning if you multiply 3 and60 you get -180 and if you add them you get 57.

so (n-3)(n+60)
divide by a in this case it 18
so (n<u>-3</u>)(n+<u>60</u>)
       18     18
do not divide. treat it like a fraction so you reduce it to lowest terms
(n<u>-3</u>)(n<u>-3)
</u>   18   10
<u /> at this point its reduced to lowest terms so now you take the deniminator and move it beside the "n"

=(18n-3)(10n-3)

therefore your answer is (18n-3)(10n-3)
I hoped this helped :)
3 0
3 years ago
Consider the functions f(x) = -2(x-3)² + 2 which is represented by the graph
ehidna [41]

The intervals of the function on the graph are:

  • Domain = (-∝, ∝)
  • Range = (-∝, 2]
  • Increases (-∝, 3]
  • Decreases [3, ∝)

<h3>The key features of the function?</h3>

The function is given as:

f(x) = -2(x-3)² + 2

See attachment for the graph.

From the graph, we have;

Domain = (-∝, ∝)

Because it takes all real values as its input

Range = (-∝, 2]

Because it has a vertex of (3, 2) and the vertex is a maximum

Also, it increases on the interval (-∝, 3] and decreases on the interval [3, ∝)

Read more about function interval at:

brainly.com/question/27831985

#SPJ1

6 0
1 year ago
Find the value of f(3) for the function f(x)=-4(x+3) f(3)=
otez555 [7]

Answer:

  • -24

Step-by-step explanation:

<u>Given function</u>

  • f(x)= -4(x+3)

<u>To find</u>

  • f(3)=?

<u>Solution</u>

Substitute x with 3 in the equation to find f(3)

  • f(3) = -4(3+3) = -4*6 = -24
7 0
3 years ago
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