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3 years ago

8

Some one explain please

2 answers:

Artist 52 [7]3 years ago

6 0

Answer:

x=3/4y-6

Step-by-step explanation:

Solve for x

-4x+3y=24

Add -3y to both sides.

-4x+3y+-3y=24+-3y

-4x=-3y=+24

Then Divide both sides by -4

-4x/-4= -3y+24/-4

x=3/4y-6

SIZIF [17.4K]3 years ago

6 0

Answer:

The value of $x$ :

$\boxed {x = \frac{3y}{4} - 6}$

The value of $y$ :

$\boxed {y = \frac{4x}{3} + 8}$

Step-by-step explanation:

Solve for the value of $x$ :

$-4x + 3y = 24$

-Subtract $3y$ to both sides:

$-4x + 3y - 3y = 24 - 3y$

$-4x = 24 - 3y$

-Divide both sides by $-4$ :

$\frac{-4x}{-4} = \frac{24 - 3y}{-4}$

$\boxed {x = \frac{3y}{4} - 6}$

-----------------------------------------------------------------------

Solve for the value of $y$ :

$-4x + 3y = 24$

-Add $4x$ to both sides:

$-4x + 4x + 3y = 24 + 4x$

$3y = 24 + 4x$

-Remember that the equation is in <u>Standard Form</u>:

$3y = 4x + 24$

-Divide both sides by $3$ :

$\frac{3y}{3} = \frac{4x + 24}{3}$

$\boxed {y = \frac{4x}{3} + 8}$

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Step-by-step explanation:

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3 0

3 years ago

A random sample of 38 wheel chair users were asked whether they preferred cushion type A or B, and 28 of them preferred type A w

-BARSIC- [3]

Answer:

The statement that cushion A is twice as popular as cushion B cannot be verified

Step-by-step explanation:

From the question we are told that:

Sample size n=38

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Type a size B $X_b=10$

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$P(a)=\frac{28}{38}$

$P(a)=0.73$

Generally the equation for A to be twice as popular as B is mathematically given by

$P(b)+2P(b)=3P$

Therefore Hypothesis

$Null H_0: p \leq \frac{2P}{3P} \\Altenative H_A:p>\frac{2P}{3P}$

Generally the equation normal approx of p value is mathematically given by

$z=\frac{x-np_0-0.5}{\sqrt{np_0(1-p_0)} }$

$z=\frac{28-(38*2/3)_0-0.5}{\sqrt{38*2/3*1/3} }$

$z=0.75$

Therefore from distribution table

$Pvalue=1-\theta (0.75)$

$Pvalue=0.227$

Therefore there is no sufficient evidence to disagree with the Null hypothesis $H_0$

Therefore the statement that cushion A is twice as popular as cushion B cannot be verified

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

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$\mathrm{Subtract\:the\:numbers:}\:21.6-8=13.6$

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