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goblinko [34]
3 years ago
7

Write each fraction as a decimal 13 over 20

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0
The answer would be .65 because 0.6513/20=0.65 So it is .65
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An isosceles triangle has an angle that measures 90°. Which other angles could be in that isosceles triangle? Choose all that ap
Inga [223]

Answer:

Step-by-step explanation:

If one angle = 90 degrees, then the other 2 added together must also = 90.

There is only 1 answer to this, since the triangle is isosceles..

x + x = 90        Combine

2x = 90            Divide by 2

x = 90/2          

x = 45

So both acute angles = 45 degrees.  

8 0
3 years ago
an item regular priced at 80.00 is on sale for 20% off. there is a 3% sales tax. what is the sale price before sales tax
Brrunno [24]

Sale price before sales tax should be 64.00.

6 0
3 years ago
Quadratic Equation Applications
serious [3.7K]

The number of $0.50 increases to maximize the profit is X = 1.

First of all, we need to write the linear function which represents the price of the ticket for each increase of $0.50:

P - Price of each ticket.

x - number of increases.

We know that the current price is $5.00, so:

    P(x) = 0.5x + 5.00

After that, let's build a linear function which shows the number of tickets sold <u>for each</u> price increase:

    T - number of tickets.

    x - number of increases.  

    T(x) = -100x + 1200

With all this done, we can finally build the quadratic function which represents the money earned:

M - money earned

M = Tickets Sold \times TicketPrice\\\\M = T(x) \times P(x)\\\\M = (0.5x + 5) \times (-100x + 1200)\\\\M = -50x^{2}  + 600x -500x + 6000\\\\M(x) = -50x^{2}  + 100x + 6000\\\\

Now, to finish, we only have to <u>calculate the value of X</u>(number of increases) which can give us the maximum value of this function:

the X coordinate for the maximum value of a quadratic is expressed by:

   Xmax = \frac{-b}{2a} \\\\

In our equation, b = 100 and a = - 50 :

Xmax = \frac{-(100)}{2(-50)} \\\\Xmax = \frac{-100}{-100} \\\\Xmax = 1

Thus, the number of increases which <u>maximizes</u> the profit is 1.

Learn more about linear and quadratic functions in: brainly.com/question/4119784

3 0
3 years ago
Another algebra question :/
pav-90 [236]

Answer:

1

Step-by-step explanation:

Co-efficient means the integer in front of the variable

The co-efficient for -4x^3 would be -4 like that

5 0
4 years ago
Read 2 more answers
BRAINLYEST ANSWER
andrew-mc [135]

Answer:

B

Step-by-step explanation:

Multiply 13 into (10-6)= 13*4=52. Now find the number sentence that gives 52. This is B because 13*10 - 13*6 = 13*4 the original problem

3 0
3 years ago
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