All categories

3 years ago

Kaitlyn has 7 white chips, 5 red chips, and 8 blue chips in a bag.

Mathematics

1 answer:

dmitriy555 [2]3 years ago

5 0

80 times could Kaitlyn expect to pull out a blue chip.

<u>Step-by-step explanation</u>:

The total number of chips in the bag = 7 white+5 red+ 8 blue = 20 chips.
Probability (blue chip) = number of blue chips / total chips

P(blue) = 8/20

She does this 200 times.

P(blue) for 200 times = (8/20) $\times$ 200 = 80.

You might be interested in

11/20 as a simplified fraction

strojnjashka [21]

11/20 is already reduced you cannot simplify this fraction

3 0

2 years ago

Find the cross product of <img src="https://tex.z-dn.net/?f=-%20%5Cfrac%7B3%7D%7B4%7Dv" id="TexFormula1" title="- \frac{3}{4}v"

dsp73

For any scalars $c_1,c_2$ , we have

$c_1\mathbf v\times c_2\mathbf w=c_1c_2\mathbf v\times\mathbf w$

So

$\left(-\dfrac34\mathbf v\right)\times\left(-\dfrac12\mathbf w\right)=\dfrac38\mathbf v\times\mathbf w$

We have

$\mathbf v\times\mathbf w=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\-2&12&-3\\-7&4&-6\end{vmatrix}$
$=\begin{vmatrix}12&-3\\4&-6\end{vmatrix}\mathbf i-\begin{vmatrix}-2&-3\\-7&-6\end{vmatrix}\mathbf j+\begin{vmatrix}-2&12\\-7&4\end{vmatrix}\mathbf k$
$=-60\,\mathbf i-(-9)\,\mathbf j+76\,\mathbf k$
$=\begin{bmatrix}-60\\9\\76\end{bmatrix}$

which makes

$\left(-\dfrac34\mathbf v\right)\times\left(-\dfrac12\mathbf w\right)=\dfrac38\begin{bmatrix}-60\\9\\76\end{bmatrix}=\begin{bmatrix}-\frac{45}2\\\\\frac{27}8\\\\\frac{57}2\end{bmatrix}$

4 0

2 years ago

Janet can make 4/5 of a necklace in 20 min .how many necklaces can she make in 1 hour

Zanzabum

4/5 * 3 = 12/5

20 * 3 = 1 hour = 60 min

3 0

2 years ago

Find the smallest positive integer divisible by $10$, $11$, and $12$.

Leya [2.2K]

Answer:

Smallest divisible number = 660

Step-by-step explanation:

Given:

Numbers

10, 11, 12

Find:

Smallest divisible number

Computation:

Factor

10 = 2×5

11 = 11×1

12 = 2×2×3

Smallest divisible number = 2×2×3×5×11

Smallest divisible number = 660

3 0

3 years ago

Stephan uses 1/4 pound of clay to make 3 teacups how much clay does the stefan use for 1 teacup

vredina [299]

Answer:

1/12

Step-by-step explanation:

8 0

1 year ago