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4 years ago

What is the solution set of the following equation?

Mathematics

2 answers:

Sladkaya [172]4 years ago

7 0

Answer:

Option A) $\phi$ is the solution set for given equation.

Step-by-step explanation:

We are given the following equation in the question:

$-8x + x + 15 = -7x + 12$

Solving the given equation, we have:

$-8x + x + 15 = -7x + 12\\-7x + 15 = -7x + 12\\-7x + 7x + 15 = -7x + 7x + 12\\15 = 12\\\text{which is never possible}$

Hence the given equation has no solution.

Thus, the solution set can be represented by a null set which can be represented as $\phi$

Option A) $\phi$ is the solution set for given equation.

alex41 [277]4 years ago

3 0

The solution to this problem is A.

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1) What left

$\boxed {d-22 \geq 42}$

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3 years ago

a company that manufactures bicycles has a fixed cost of $80,000. it costs $100 to produce each bicycle. the total cost for the

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C(x) = 80000 + 100x is the total cost as function of number of cycles produced

C(90) = 89000 and it costs $ 89000 to produce 90 bicycles

Solution:

Given that, company that manufactures bicycles has a fixed cost of $80,000

Fixed cost = $ 80,000

Let x be the number of cycles produced

Let C(x) be the total cost as function of number of cycles produced

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Variable cost = 100 x number of cycles produced

variable cost = 100x

The total cost for the company is the sum of its fixed cost and variable costs

total cost = fixed cost + variable cost

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Thus total cost as function of "x" is found

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Substitute x = 90 in C(x)

C(90) = 80000 + 100(90)

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3 years ago

Evaluate a+b for a=-17 and b=8

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substitute 17 for A

substitute 8 for B

should look like this

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should look like this

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3 years ago

And an electronics warehouse ships TVs and DVD players to retailers all throughout the United States. The weight of three televi

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X= weight of TV
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You can either solve for a variable, or eliminate a variable by subtracting the second equation from the first:

3x + 5y = 62.5
-(3x+2y = 52)
0 + 3y = 10.5, so y = 10.5/3 or 3.5.

Now plug y= 3.5 back into any equation to get x:

3x + 5(3.5) = 62.5
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Always check work. Both equations should be true for x=15, y= 3.5

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