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xeze [42]
3 years ago
10

(1 Euro [€] = $1.25 us) how many US dollars is there for 10€?

Mathematics
1 answer:
stiv31 [10]3 years ago
6 0
I think it's $11.79 but I'm not entirely sure
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The function f(x) = –x2 + 20x – 75 models the profit from one customer, in dollars, a shop makes for printing photos, where x is
trasher [3.6K]
The function is graphed as shown below

Part A:

We use the formula - \frac{b}{2a} to find the vertex of the function. A quadratic function of the form of a x^{2} +bx+c and equating this form to the given function - x^{2} +20x-75, we have
b=20 and a=-1.

Substituting a and b into the vertex formula, we have
x=- \frac{20}{2(-1)}=10, as shown in the graph

This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos

Part B:

We can find solution to this equation by factorising

- x^{2} +20x-75=0
-( x^{2} -20x+75)=0
x^{2} -20x+75=0
(x-5)(x-15)=0
x=5 and x=15, as shown in the graph

The two values means that the company makes no profit when they either produce 5 or 15 photos

8 0
3 years ago
5(x + 2) = 3(x + 8)
Nady [450]
If your looking for X, it would be X = 7
7 0
3 years ago
Read 2 more answers
What is the value of x?
ASHA 777 [7]
The answer is 20

the scale factor is 1.25 (to find that out do 12.5/10) then multiply 16 by 1.25 and you get 20.
7 0
2 years ago
Read 2 more answers
What is 1 + 2 I really need this answer my grades depend on it!!!
babunello [35]

Answer:

3 is the answer 1 + 2 is the same as 1 + 1 + 1=3

hope this helps

have a good day :)

Step-by-step explanation:

5 0
3 years ago
Find the y-intercept of the line on the graph.
balandron [24]
The y intercept is - 1

It is where the line touches or crosses the y axis
3 0
2 years ago
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