Simplify 25x4 dived by {12 - 8} please explain

1 answer:

4 0

100 divided by 4 which would equal 25.
I got that because I multiplied first the subtracted, finally dividing 100 by 4 which would equal 25.

I hope that helped!

You might be interested in

Order the numbers from least to greatest<br><br> −1.4,−85, 0.6,−0.9, 14

Ksivusya [100]

Answer:

-85, -1.4, -0.9, 0.6, 14

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Iq scores are normally distributed with a mean of 100 and a standard deviation of 15.

bearhunter [10]

Mean is $\mu=100$ and a standard deviation is $\sigma =15$ , then the variable $X\sim N(100,15^2)$ .

Use substitution

$Z=\dfrac{X-\mu}{\sigma},\\ \\ Z=\dfrac{X-100}{15}$ .

This substitution gives you that $Z\sim N(0,1)$ .

a. For X=130, $Z=\dfrac{130-100}{15}=2$ and $Pr(X>130)=Pr(Z>2) =0.9772$ (the decimal value is taken from the Standard Normal Distribution Table).

b. For X=90, $Z=\dfrac{90-100}{15}=-\dfrac{2}{3}$ and for X=110, $Z=\dfrac{110-100}{15}=\dfrac{2}{3}$ . Then $Pr(90$ (the decimal value is taken from the Standard Normal Distribution Table).