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2 years ago

What is the value of x in the equation -2/9x = 2/5?

Mathematics

1 answer:

rewona [7]2 years ago

3 0

Is the letter B, I hope I help you.

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What is 5x5 cause I don’t know what it is

grigory [225]

Answer:

Step-by-step explanation:

5 + 5 + 5 + 5 + 5 = 25

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2 years ago

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Katie earns 15$ each hour. Round to total time katie worked to the nearest hour and estimate her pay by using mulitplacation

Cloud [144]

Answer:

How long did she work for though?

Step-by-step explanation:

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2 years ago

How do you find the percent to change of 86 to 150

bulgar [2K]

Answer:

57.3333333333

Step-by-step explanation:

you set up a equation that looks like this

___ = ______

100 150

you mutiply 100 by 86 and get 8600 then you divide that by 150 and get 57.333333333 as your finally answer.

4 0

3 years ago

PLEASE HELP AND HURRY

kogti [31]

Here the given expression is

$y =(\frac{3}{4})^x$

We need to find the value of y when x =3 . So we substitute the value of x in the given expression.

$y =(\frac{3}{4})^3 = \frac{27}{64} =0.4$

So when x=3, y=0.4 and that's the required answer.

6 0

3 years ago

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin

g100num [7]

Answer: $(24.28,\ 27.72)$

Step-by-step explanation:

Given : Sample size : $n=50$

Sample mean : $\overline{x}=26$

Standard deviation : $\sigma =6.2$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=26\pm(1.96)\dfrac{6.2}{\sqrt{50}}\\\\\approx26\pm1.72\\\\=(26-1.72,\ 26+1.72)\\\\=(24.28,\ 27.72)$

Hence, a 95% confidence interval for the population mean = $(24.28,\ 27.72)$

6 0

3 years ago