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Anni [7]
3 years ago
12

Answer the problem below

Mathematics
1 answer:
Makovka662 [10]3 years ago
6 0
The equation would be:

y = -5/4x + 5
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Let x=number of cds and y=number of dvds
Elis [28]
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===

x = 30

6 0
4 years ago
(x+16)²=12 plz help me and show work
Readme [11.4K]

Answer:

The answer is x=-16 ±2\sqrt{3} in exact form or x=-12.535898, x=-19.464102 in decimal form.

Step-by-step explanation:

To solve this problem, start by moving all terms to the left side of the equation and simplify. Simplify the equation by subtracting 12 from both sides of the equation and squaring x+16, which will look like x^{2} +32x+256-12=0. Next, simplify the equation again, which will look like x^{2} +32x+244=0.

Then, use the quadratic formula to find the solutions. The quadratic formula looks like\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}.

For this problem, the quadratic variables are as follows:

a=1

b=32

c=244

The next step is to substitute the values a=1, b=32, and c=244 into the quadratic formula and solve. The quadratic formula will look like \frac{-32(+-)\sqrt{32^2-4(1*244)} }{2*1}. To simplify the equation, start by simplifying the numerator, which will look like x=\frac{-32(+-)4\sqrt{3} }{2*1}. Then, multiply 2 by 1 and simplify the equation, which will look like x=-16(+-)2\sqrt{3}. The final answer is x=-16 ±2\sqrt{3} in exact form. In decimal form, the final answer is x=-12.535898, x=-19.464102.  

6 0
3 years ago
4y+3y simplify
kykrilka [37]

Answer:

<h2>✓ Simplifying Expressions</h2>

4y + 3y

<h3>Solution:</h3>

4y + 3y \\  = 7y

  • Adding the numerical coefficient with the terms that have the same variables. Meaning they are like terms. Adding the base and then copy the variables.

<h3>> Therefore, the answer is 7y.</h3>
4 0
3 years ago
Read 2 more answers
Find the value of 33 - (4)(2). 1,10,19,46
Charra [1.4K]

Given: 33 - (4)(2)

33 - (4)(2) = 33  - 8

= 25

Hence, the value is 25.

5 0
3 years ago
Read 2 more answers
Pls helpppp
kkurt [141]

Answer:

Neema should get one box.

Step-by-step explanation:

Neema has 10 friends and each friend wants 2 cookies. 2x10 = 20 cookies, the exact amount that is included in a single box. So Neema only needs to get one box to satisfy everyone.

5 0
2 years ago
Read 2 more answers
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