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Klio2033 [76]
3 years ago
6

Cost of CD $14.50 markup 30%

Mathematics
1 answer:
zhenek [66]3 years ago
8 0
14.50 x .30 = 4.35
14.50 + 4.35 = $18.85 if that is what you are looking for.
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What is this number in standard form?
Ede4ka [16]

Answer:

6,529

Step-by-step explanation:

(6x11,000) = 60,000

(5x1,000) = 5,000

(2x110) = 200

(9x1) = 9

5 0
2 years ago
$0.\overline{5} + 0.19\overline{4}$.
Scilla [17]

Answer:

0.\overline{5} + 0.19\overline{4}=0.75

Step-by-step explanation:

Given expression:

0.\overline{5} + 0.19\overline{4}

To evaluate the expression.

Solution.

The values are

0.\overline{5}=0.555555......  

Let X=0.555555..... -----------1                  

Multiplying 10 both sides.

10X=5.555555....----------2

Subtracting 1 from 2.

 10X=5.555555....

- X=0.555555.....

-------------------------------------------

9X=5.0

Dividing both sides by 9.

\frac{9X}{9}=\frac{5}{9}

X=\frac{5}{9}

0.19\overline{4}=0.194444....

Let Y=0.1944444..

Multiplying both sides by 100

100Y=19.44444..------------3

Multiplying 1000 both sides.

1000Y=194.4444....----------4

Subtracting 3 from 4.

 1000Y=194.4444....

- 100Y=19.44444.....

-------------------------------------------

900Y=175.0

Dividing both sides by 900.

\frac{900Y}{900}=\frac{175}{900}

Y=\frac{175}{900}

So, we can evaluate the given expression as:

⇒ 0.\overline{5} + 0.19\overline{4}

⇒ X+Y    

⇒ \frac{5}{9}+\frac{175}{900}

Taking LCD = 900

⇒ \frac{5\times 100}{9\times 100}+\frac{175}{900}

⇒ \frac{500}{900}+\frac{175}{900}

Adding numerators.

⇒ \frac{500+175}{900}

⇒ \frac{675}{900}

⇒ 0.75 (Answer)

7 0
3 years ago
Which of the following is equivalent to (p3)(2p2 - 4p)(3p2 - 1)?
aleksandrvk [35]
(p³)(2p² - 4p)(3p² - 1) = (p³)(2p²*3p² - 4p*3p² - 1*2p² - 4p*(-1)) = 
= (p³)(6p⁴ - 12p³ - 2p² + 4p) 

Answer: A)
7 0
3 years ago
Read 2 more answers
The correlation coefficient r between the values assumed by two variables, X
Flura [38]

The slope of the line of best fit to the raw-score scatter plot is 0.98

  • The equation is y = 0.98x - 3.74
  • The value of y given that x = 12 is 8.02

<h3>How to determine the slope of the line?</h3>

From the question, we have the following parameters that can be used in our computation:

  • Standard deviations of X, Sx = 1.88
  • Standard deviations of Y, Sy =2.45
  • Correlation coefficient, r between X and Y = 0.75

The slope (b) of the line is calculated as

b = r * Sy/Sx

Substitute the known values in the above equation, so, we have the following representation

b = 0.75 * 2.45/1.88

Evaluate

b = 0.98

<h3>The equation of the line of best fit</h3>

A linear equation is represented as

y = bx + c

Where

Slope = b

y-intercept = c

In (a), we have

b = 0.98

So, we have

y = 0.98x + c

Recall that the point (13, 9) is on the line of best fit.

So, we have

9 = 0.98 * 13 + c

This gives

9 = 12.74 + c

Evaluate

c = -3.74

So, we have

y = 0.98x - 3.74

<h3>The value of y from x</h3>

Here, we have

x = 12

So, we have

y = 0.98 x 12 - 3.74

Evaluate

y = 8.02

Read more about line of best fit at

brainly.com/question/1564293

#SPJ1

4 0
1 year ago
This graph shows the distance that a robot walk. What’s is the robot’s speed ?
Charra [1.4K]

B. 10 ft per minute

because the line is steadily increasing at a constant rate yeah, it's 10 feet per minute

7 0
3 years ago
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