All categories

4 years ago

X= -y + 3 3x - 2y = -1

Mathematics

1 answer:

nikdorinn [45]4 years ago

6 0

Answer:ok whats the proplem?

Step-by-step explanation:

You might be interested in

Which graph has the parent function 1/x?

Kazeer [188]

Answer:

The graph of parent function $f(x)=\frac{1}{x}$ is a hyperbola.

Step-by-step explanation:

A rational function is described as the fraction of polynomials, where the denominator has degree of at least 1 .

Or it can be said that there must be a variable in the denominator.

The general form of a rational function is:

$\text{Rational Function}= f(x)=\frac{p(x)}{q(x)}$

In this case the parent function provided is: $f(x)=\frac{1}{x}$ .

The function is rational.

The graph of parent function $f(x)=\frac{1}{x}$ is a hyperbola.

The graph is attached below.

8 0

4 years ago

What expression is equivalent to – 6( – 6g–4)–2g?

allsm [11]

Answer:

(36g+24)-2g.

6 0

3 years ago

At a prize of Rs. 10 per unit the demand of a commodity is 200 units. Its prize elasticity of demand is (-)1×5. At what prize wi

Triss [41]

250 units would be demanded when price is $11.67.

<h3>What is price elasticity of demand?</h3>

Price elasticity of demand measures the responsiveness of quantity demanded to changes in price of the good.

Price elasticity of demand = percentage change in quantity demanded / percentage change in price

<h3>What is the price?</h3>

Percentage change in the quantity demanded = (250 / 200) - 1 = 25%

Percentage change in price = 25% / 1.5 = 16.67

Price = (1 + 0.1667) x 10 = 11.67

To learn more about price elasticity of demand, please check: brainly.com/question/18850846

8 0

3 years ago

Read 2 more answers

41. Assuming that a man can complete the work alone in x days, his work in four days would be: a) b) X X C d) 4x x 42. If a man

Schach [20]

Percentage and ratio word problems require understanding of the relationship between variables from which the question is formed

The options that give the correct values of the duration of the work are;

$41. \ c) \ \dfrac{4}{x}$

$42. \ d) \ \dfrac{4}{x} + \dfrac{6}{y} = \dfrac{1}{5}$

43. a) 35 days

44. c) 21·a + 28·b = 1

45. c) (42, 56)

Reasons:

41. Number of days it takes a man to complete the work alone = x days

Therefore;

$The \ work \ done \ by \ the \ man \ in \ one \ day = \dfrac{1}{x}$

$The \ work \ done \ in \ four \ days \ by\ the \ man = 4 \times \dfrac{1}{x} = \dfrac{4}{x}$

The correct option is $c) \ \dfrac{4}{x}$

42. Number of days it takes a man to complete the work alone = x days

$Work \ done \ by \ a\ man \ in \ one \ day = \dfrac{1}{x}$

$Work \ done \ by \ four \ men \ in \ one \ day = \dfrac{4}{x}$

Number of days it takes a boy to complete the work alone = y days

$Work \ done \ by \ a \ boy \ in \ one \ day = \dfrac{1}{x}$

$Work \ done \ by \ six \ boys \ in \ one \ day = \dfrac{6}{y}$

4 men and 6 boys work for 5 days to complete the work

Therefore, work done by 4 men and 6 boys in 1 day is therefore;

$\dfrac{4}{x} + \dfrac{6}{y} = \dfrac{1}{5}$

The correct option is therefore;

$d) \ \dfrac{4}{x} + \dfrac{6}{y} = \dfrac{1}{5}$

43. As per the case study, we have;

Case 1

$\dfrac{4}{x} + \dfrac{6}{y} = \dfrac{1}{5}$

Which gives;

$\dfrac{6\cdot x + 4\cdot y}{y \cdot x} = \dfrac{1}{5}$

30·x + 20·y = y·x

Case 2

$\dfrac{3}{x} + \dfrac{4}{y} = \dfrac{1}{7}$

Which gives;

$\dfrac{4\cdot x + 3\cdot y}{y \cdot x} = \dfrac{1}{7}$

28·x + 21·y = y·x

Therefore;

30·x + 20·y = 28·x + 21·y

∴ 2·x = y

Plugging in the value of <em>y</em> = 2·x, in Case 1 gives;

$\dfrac{4}{x} + \dfrac{6}{2 \cdot x} = \dfrac{1}{5}$

$\dfrac{2 \times 4 + 6}{2 \times x} = \dfrac{14}{2 \times x} =\dfrac{7}{x} = \dfrac{1}{5}$

7 × 5 = x

x = 7 × 5 = 35

The number of days, <em>x</em>, it takes a man to complete the work alone, is given by option; a) <u>35 days</u>

44. For the equation $\dfrac{3}{x} + \dfrac{4}{y} = \dfrac{1}{7}$ , if $a = \dfrac{1}{x}$ , and $b = \dfrac{1}{y}$ , we have;

$3 \cdot a+ 4\cdot y = \dfrac{1}{7}$

21·a + 28·y = 1

The correct option is option C. <u>21·a + 28·b = 1</u>

45. A solution to the equation $\dfrac{3}{x} + \dfrac{4}{y} = \dfrac{1}{7}$ , is given by the values of <em>x</em>, and <em>y</em>, that gives;

$\dfrac{1}{14} + \dfrac{1}{14} = \dfrac{1}{7}$

We have;

3 × 14 = 42

4 × 14 = 56

Therefore, a solution to the equation is (42, 56)

The correct option is $c) \ \underline{ (42, \ 56)}$

Learn more here:

brainly.com/question/11825953

brainly.com/question/14626596

brainly.com/question/15573651

3 0

2 years ago

"You figure you can ride Ghost Wind, then get on. Just bring him back to the stable when you're finished so I can rub him down."

AlekseyPX

Answer:

character vs nature.

minor

I got it right on edge 2021

5 0

3 years ago

Read 2 more answers