All categories

3 years ago

How do you simplify 8/21

1 answer:

8 0

To simplify 8/21 you find a factor that will go into each number. This problem cannot be simplified as a fraction but you can turn it into a decimal. To turn it into a decimal you will divide 8 by 21. The fraction in decimal form is 0.38095238095.

You might be interested in

Find the value of r so the line that passes through (-5,2) and (3,r) has a slope of -1/2

soldier1979 [14.2K]

The value of r so the line that passes through (-5,2) and (3,r) has a slope of -1/2 is -2

Solution:

Given that line is passing through point (-5, 2) and (3, r)

Slope of the line is $\frac{-1}{2}$

Need to determine value of r.

Slope of a line passing through point $\left(x_{1}, y_{1}\right) \text { and }\left(x_{2}, y_{2}\right)$ is given by following formula:

$\text { Slope } m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ --- eqn 1

$\text { In our case } x_{1}=-5, y_{1}=2, x_{2}=3, y_{2}=\mathrm{r} \text { and } m=-\frac{1}{2}$

On substituting the given value in (1) we get

$\begin{array}{l}{-\frac{1}{2}=\frac{r-2}{3-(-5)}} \\\\ {\text { Solving the above expression to get value of } r} \\\\ {=>-\frac{1}{2}=\frac{r-2}{3+5}} \\\\ {=>-8=\frac{r-2}{3+5}} \\\\ {=>-8=2(r-2)} \\\\ {=>-8=2 r-4} \\\\ {=>2 r=-8+4} \\\\ {=>2 r=-4} \\\\ {=>r=\frac{-4}{2}=-2}\end{array}$

Hence the value of "r" is -2

8 0

3 years ago

What would my grade be if i had a 76% in the class, then got a 0% on a test worth 70% of my grade?

ExtremeBDS [4]

Answer:

I believe it would be 6

7 0

3 years ago

Identify some exterior angles in the figure. Select the two correct answers.

Naya [18.7K]

A and C are the correct answers

4 0

2 years ago

the ratio of dogs to cats at the pet store is 2:5. if there are 14 total pets how many dogs and cats are there

anygoal [31]

Hi ;-)

2x ⇒ dogs

5x ⇒ cats

2x + 5x = 14

7x = 14 / : 7

x = 2

2 · 2 = 4 dogs

5 · 2 = 10 cats

6 0

2 years ago

8 for 2 pound of rice in unit rate

Sav [38]

8/2 pound, simplified 4/1 pound

5 0

3 years ago