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Fynjy0 [20]
3 years ago
10

Twenty divided by a number algebraic expression

Mathematics
1 answer:
strojnjashka [21]3 years ago
3 0

Answer:

20/n

Step-by-step explanation:

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3.
katen-ka-za [31]

Answer:

Option B will be your answer

Step-by-step explanation:

B. The balloon starts at a height of 500 ft and rises at a rate of 150 ft.

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<em>hope it helps ^_^</em>

7 0
3 years ago
Read 2 more answers
Prove that if a and b are integers, then a^2-4b egal or non-egal 2
Lera25 [3.4K]

Answer:

tex]a^2 - 4b \neq 2[/tex]

Step-by-step explanation:

We are given that a and b are integers, then we need to show that a^2 - 4b \neq 2

Let  a^2 - 4b = 2

If a is an even integer, then it can be written as a = 2c, then,

a^2 - 4b = 2\\(2c)^2 - 4b =2\\4(c^2 -b) = 2\\(c^2 -b) =\frac{1}{2}

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

If a is an odd integer, then it can be written as a = 2c+1, then,

a^2 - 4b = 2\\(2c+1)^2 - 4b =2\\4(c^2+c-b) = 2\\(c^2+c-b) =\frac{1}{4}

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

Thus, our assumption was wrong and a^2 - 4b \neq 2.

7 0
3 years ago
What is the answer to x + 23 = 15
Roman55 [17]

Answer:

-8

Step-by-step explanation:

1. x + 23 = 15

2. x + 23 = 15

-23 -23

3. x = -8

5 0
3 years ago
Read 2 more answers
12. Phil invests $5000 in a high-interest savings account and earns 3.5% simple
Ksenya-84 [330]

Answer: 13 years

Step-by-step explanation: this is the equation

5000(1+0.035)^n=7800

4 0
3 years ago
A guitar factory has a cost of production C(x) = 100x + 56000 , where is the number of guitars produced . If the company needs t
PSYCHO15rus [73]

Answer:

Step-by-step explanation:

If the company wants to just break even, that means that the cost to produce 150 guitars is equal to the price they charge to make a 0 profit. The cost of 150 guitars is

C(150) = 100(150) + 56000 and

C(150) = 71000. That's how much it costs to produce 150 guitars. If they want to make nothing at all, they have to sell the 150 guitars for

p(x) = 71000/150 so

p(x) = 473.33 or 474

4 0
3 years ago
Read 2 more answers
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