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Olenka [21]
3 years ago
9

I need help with this, I’ve tried figuring it out but I don’t exactly understand everything about it, if I got the answer, it wo

uld help me understand it better with the explanation. I appreciate any help!

Mathematics
1 answer:
denis-greek [22]3 years ago
3 0
I tried my best using the app but this picture is the answer.

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Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets costs $15 for adults and $10 for children unde
raketka [301]

Answer:

C = 15

Step-by-step explanation:

Let A = # of adults and C = # of children.

 

A +  C = 20

15A + 10C = 225

 

There are several ways to solve this system; here is one of them.

 

From the first equation: C = 20 - A

Substitute into the second equation: 15A + 10(20 - A) = 225

Multiply, collect terms, and subtract 200 from each side: 5A = 25 => A = 5

Since C = 20 - A, C = 15

4 0
3 years ago
John has a containing 24 2/3 feet of wrapping paper. he wants to divide it into 11 pieces first though he must cut off 5/6 foot
navik [9.2K]
Each piece would be 13/4 or 2.1666666(feet)
8 0
3 years ago
A rectangle has a side length of two and seven eighths feet and a side width of 5 feet. What is the area of the rectangle?
Elza [17]

Answer:

14 3/8 ft^2

Step-by-step explanation:

Area = length * width

=   2 7/8 * 5

=  23/8 * 5

= 115/8

= 14 3/8 ft^2.

6 0
2 years ago
Ind the perimeter and area of the sandbox. Make sure your answers have the correct number of significant digits. A children's sa
lawyer [7]
Perimeter: 26.06ft

area: 40.794 
8 0
4 years ago
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
nikdorinn [45]

We are given zeros of the polynomial : 7, -11, and 2 + 8i.

Note: The radical zero always comes with the pair of plus and minus sign.

Therefore, another zero would be 2-8i.

Now, in order to find the polynomial with the zeros 7, -11, 2 + 8i and 2-8i, we need to find the factors of the polynomial.

The factors of the polynomial would be (x-7)(x+11)(x-2-8i)(x-2+8i).

Let us multiply those factors to get the standard form of the polynomial.

\left(x-2-8i\right)\left(x-2+8i\right)=\left(x-2-8i\right)\left(x-2+8i\right)  =x^2-4x+68

\left(x-7\right)\left(x+11\right)=x^2+11x-7x-77=x^2+4x-77

\left(x^2-4x+68\right)\left(x^2+4x-77\right)=x^4-9x^2-16x^2+308x+272x-5236\\

=x^4-25x^2+580x-5236.

<h3>Therefore, correct option is 4th option f(x) = x^4 - 25x^2 + 580x - 5236.</h3>
8 0
3 years ago
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