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3 years ago

Help me with this please also please show me how you got the answer so I understand it

Mathematics

1 answer:

Ilya [14]3 years ago

3 0

We already know that C = 45. All we really need to do is simplify the equation and then solve for x.

45 = x + 0.06x + 0.08x + 0.1x
45 = (1 + 0.06 + 0.08 + 0.1)x
45 = 1.24x
x = 36.2903, which rounds to $36.29 for the haircut.

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A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0

3 years ago

One-fifth of a number x is less than 8. Find the greatest possible prime number x.

GuDViN [60]

Hello there, I am unable to use the “less than” symbol. Sorry :( .

1/5x "less than" 8
x “Less than” 40

Prime number is 37,41.
Therefore x is 37.

8 0

2 years ago

Can someone please help?

puteri [66]

Answer:

1)Alternate exterior

2) corresponding

3) alternate interior

4) non of these

Mark me brainliest

6 0

3 years ago

What is the factor of 3x2-9x-12?<br> pleaseeee help me guys !!

8090 [49]

Answer:3x² - 9x - 12 =

3(x² - 3x - 4) =

3(x² + x - 4x - 4) =

3(x(x+1)-4(x+1)) =

3(x+1)(x-4)

Step-by-step explanation:

8 0

3 years ago

I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would

andreyandreev [35.5K]

The Answer is 4605cm^3

Hope this helps good luck

5 0

3 years ago