How to change 0.225 into a fraction

STatiana [176]

Answer:

8. 6 shirts ($61)

9. $61

10. 32 shirts (256)

Step-by-step explanation:

To get the answers you could either graph the rates or create a table. Creating a table is easier to understand, graphing is much faster. I attached pictures of the graphs. Y axis being amount of $ and x axis being the amount of shirts.

Second graph is for questions 8 and 9

first graph for question 10

The difference is that i took out shipping for question 10

Table explains 8 and 9 more easily

4 0

4 years ago

Here it is the final quetion

OleMash [197]

Answer:

1. 4x - 1

2. -2x - 5

3. 20

Step-by-step explanation:

There was a glitch with brainly, so I added the explanation in screenshots.

4 0

3 years ago

Bianca uses 3/10 of her allowance for clothes and 3/20 on entertainment. What decimal represents the part of allowance that she

7nadin3 [17]

0.45 is the correct answer. Let me know if you have any other questions.

5 0

4 years ago

Let u = <-3, 4>, v = <8, 2>. Find u + v.

Liono4ka [1.6K]

Answer:

WHAT SUBJECT IS THAT? TELL ME WHAT SUBJECT AND I'LL ANSWER IT PROPERLY

7 0

3 years ago

A college dormitory houses 200 students. Those who watch an hour or more of television on any day always watch for less than an

jeka57 [31]

Answer:

Tomorrow = 25 students

In 2 days = 44 students

In 40 days = 40 students

Step-by-step explanation:

Let A = watch more than an hour

B = watch less than an hour

First of all we need to make a transition matrix

$P = \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix} \binom{A}{B}$

Also we are given,

X = [100, 100]

A B

Therefore,

$XP=\begin{bmatrix}100 & 100\end{bmatrix} \times \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix}$

= [25, 175]

Thus, 25 students will watch television for an hour or more tomorrow.

Now for 2 days,

$XP^2=\begin{bmatrix}100 & 100\end{bmatrix} \times \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix} \times \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix}$

= [43.75, 156.25]

Hence, 44 students will watch television for an hour or more in 2 days.

Now in 40 days,

$XP^40=\begin{bmatrix}100 & 100\end{bmatrix} \times \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix}^{40}$

But instead of multiplying the above matrix 40 times, we can we can find the long term division method.

Let

x = long term distribution of students watching television >1 hour

y = long term distribution of students watching television <1 hour

Therefore,

$\begin{bmatrix}x & y\end{bmatrix} \times \begin{bmatrix}0 & 1\\ 0.25 & 0.75\end{bmatrix} = \begin{bmatrix}x & y\end{bmatrix}$

⇒ 0.25 y = x

And we know that x + y = 200

∴ 0.25 y + y = 200

∴ y = 160

And x = 40 ( ∵ x + y = 200)

Thus 40 students will watch televisions in the 40 days for an hour or more.

3 0

3 years ago