Shirley has enrolled for violin classes. She puts in a total of 14 hours of practice
in a week. Find the number of hours spent on practice over a 10 day period.
Show work
Explain your thinking solving strategy

Answers

Answer 1

Step-by-step explanation:

1 week = 7 days

given 7 days = 14 hours of practice

and let x be the number of hours spent on practicing and y the number of days.

from the above expression we can have the equation,

[tex]y = \frac{x}{2} [/tex]

using the equation when y = 10,

[tex] \frac{x}{2} = 10 \\ x = 2(10) \\ = 20[/tex]


Related Questions

yo whos in geomerty for sjvs

Answers

Answer:

no sir

Step-by-step explanation:

if you have any geometry questions im not gonna guarantee that i know the answer

What is the value of x

Answers

5^x+2=5^9
Temporarily remove base of exponents:
5&5
New equation and subtract to separate x:
x+2=9
-2 -2
x=7
New Equation: 5^7+2=5^9
Answer: X=7

What is the solution to the equation below?

Answers

Answer:

x=500 hope that helps at all

Liquid products were first obtained from coal in England during the 1700s. Lamp oil was produced from coal in the United States as early as 1850, but the domestic coal chemicals industry did not develop until World War I. A modern coal - for - recovery system uses a battery of coke ovens to produce liquid products from coal feed. These observations are obtained on the random variable X, the number of gallons of liquid product obtained per coal feed: (insert data)
7.6 8.2 7.1 10.0 6.5 9.6
6.1 6.2 7.6 6.2 9.5 6.7
7.4 9.5 9.2 8.0 8.5 9.3
8.8 9.6 9.7 6.8 7.1 7.7
8.7 7.8 8.7 8.2 8.2 7.4
9.0 8.8 7.3 7.9 7.1 7.9
7.6 6.7 8.1 6.2 5.3 7.4
7.7 9.1 7.9 8.7 8.4 8.1
a). Construct a stem – and – leaf diagram for these data. Use the numbers 5,6,7,8,9,10 as stems.
b). Is the assumption that X is normally distributed justifiable? Explain.
c). Break these data into six categories
d). Construct a frequency table and relative frequency histogram for these data. Does the histogram exhibit the bell – shape characteristics of a normal density?
e). Construct a cumulative frequency table and relative cumulative frequency ogive for these data. Use the ogive to approximate the probability that a randomly selected ton of coal will yield les than 7 gallons of liquid product.

Answers

Answer:

b) The data is bell shaped hence the assumption of X been normally distributed is correct

c) The categories are

  <  5, 5-6, 6-7, 7-8,  8-9, 9-10

d) attached below

e) The probability of < 7 gallons = 0.167

Step-by-step explanation:

a) stem and leaf diagram for these data

stem             leaf

5               .3

6               .1, .2, .2, .2, .5, .7, .7, .8

7               .1, .1, .1, .3, .4, .4, .4, .6, .6, .6, .7, .7, .8, .9, .9, .9

8              .0, .1, .1, .2, .2, .2, .4, .5, .7, .7, .7, .8, .8

9              .0, .1, .2, .3, .5, .5, .6, .6, .7

10             0

b) The data is bell shaped hence the assumption of X been normally distributed is correct

c) The categories are

  <  5, 5-6, 6-7, 7-8,  8-9, 9-10

d) attached below

e) The probability of < 7 gallons = 0.167

Select the correct answer. The graph of function f is shown. Function g is represented by the table. x -1 0 1 2 3 g(x) -24 -4 0 Which statement correctly compares the two functions? A. They have the same x-intercept and the same y-intercept. B. They have the same end behavior as x approaches ∞, but they have different x- and y-intercepts. C. They have the same x-intercept and the same end behavior as x approaches ∞. D. They have the same y-intercept and the same end behavior as x approaches ∞.

Answers

The answer is c

A. They have the same x-intercept and the same y-intercept. B. They have the same end behavior as x approaches ∞, but they have different x- and y-intercepts. C. They have the same x-intercept and the same end behavior as x approaches ∞. D. They have the same y-intercept and the same end behavior as x approaches ∞.

Solve for y. 3=7(1-1)

(it isn't 2)​

Answers

Answer:

First off, I can't solve for y, there is no y variable.

Second, 3 = 7 ( 1 - 1 ) is not true because 3 ≠ 0 ( 3 doesn't equal 0 ) :

3 = 7 ( 1 - 1 )

3 = 7 ( 0 )  ( Simplify Parenthesis )

3 = 0 ( Multiply 7 and 0 )

3 ≠ 0

Change 360.439 to degrees, minutes, and seconds.
A360° 55' 56'
b. 360° 25' 48'
C.360° 56' 80
D360° 53' 55"
Please select the best answer from the choices provided
A
B
C
D

Answers

Answer:

C. 360° 56' 80

Step-by-step explanation:

Sana makatulong :,-)

Expand and simplify
(4 + √2 }(6-√2)
Give your answer in the form b + c√2

Answers

Answer:

[tex]22+2\sqrt{2}[/tex]

Step-by-step explanation:

apply the FOIL method: [tex]4\cdot \:6+4\left(-\sqrt{2}\right)+\sqrt{2}\cdot \:6+\sqrt{2}\left(-\sqrt{2}\right)[/tex]

combine like terms: [tex]4\cdot \:6-4\sqrt{2}+6\sqrt{2}-\sqrt{2}\sqrt{2}[/tex]

then simplify: [tex]22+2\sqrt{2}[/tex]

The main aim of exponential distribution is?

Answers

Pop smoke woo Dior pop smok

If you've driven at a speed 60 mph constantly. How far have you driven?

Answers

Answer:

60

Step-by-step explanation:

60 miles per hour

Answer:

Step-by-step explanation:

Speed in miles per hour (mph)

Miles per hour is often used for car speeds. One minute at 60 mph will move you 1 mile.

the mult of 5-6 to the power of 76

Answers

9514 1404 393

Answer:

  1

Step-by-step explanation:

  [tex](5-6)^{76}=(-1)^{76}=((-1)^2)^{38}=1^{38}=\boxed{1}[/tex]

Answer:

the answer is 1

Step-by-step explanation:

:)))))))

A shipment of fibers is not acceptable if the mean breaking strength of the fibers is less than 50.03 N. A large sample of fibers from this shipment was tested, and a 98% lower confidence bound for the mean breaking strength was computed to be 50.1 N. Someone suggests using these data to test the hypotheses H0 : μ ≤ 50.03 versus H1 : μ > 50.03. Is it possible to determine from the confidence bound whether P < 0.01? Explain.

Answers

Answer:

NO it is not possible

Step-by-step explanation:

It is  not possible to determine from the confidence bound whether p < 0.01 and this is because since the 50.03 is less than 98% lower confidence bound which is 50.1 N , we  know that p value < 0.03 but  P value might be ≥ 0.01 . hence we cannot determine from the confidence bound whether p < 0.01

Akiko is multiplying -15 by a positive integer. Which of the following statements describes the product Akiko should get?

Answers

Answer:

Step-by-step explanation:

-15

Which function has a greater y-intercept?
Choose 1 Answer:
A. Function 1
B. Function 2
C. The functions have the same y-intercept

Answers

Answer:

it would the letter B

Step-by-step explanation:

the y intercept for function 1 is 3 and the y intercept for function 2 is 5

hurry please i have 2 minutes left

Answers

Answer:

Option D

Step-by-step explanation:

Option A would not be accurate

Option B would not be accurate

Option C wouldn’t be a valid option

Option D would be accurate

Option E wouldn’t be accurate at all

Option F not a good one

Hey please help will mark brainliest / please give a genuine anwser

Answers

Answer:

Shaded area is 392

Step-by-step explanation:

The triangles on the left have heights 14 and 14, the ones on the right have 20 and 8.

The bases are equal, so we can compute them as (40-12)/2 = 28/2 = 14

The triangles have areas:

14*14/2 = 14*7 = 98

14*14/2 = 14*7 = 98

20*14/2 = 20*7 = 140

8*14/2 = 8*7 = 56

note that the triangles on the left and the ones on the right have the same total area! That would have happened no matter what the height split was!

The total area is 98+98+140+56 = 196 + 196 = 392

Graph the function and identify the domain and range. y=-3x2​

Answers

range is what crosses the y-axis

domain is what crosses the x-axis

The circumference of a circle is 125.6 inches. What is the circle's radius?

Help pls!

Answers

Answer:

i believe the answer is 19.99 inches

Imani is flying a drone. It takes off from a height of 24 feet above the ground and rises at a constant rate of 4.5 feet per second. Imani is trying to get it high enough above the ground to see the Hudson River. The drone must be at least 330 feet above the ground.

Answers

Answer:

It will take 73 seconds.

Answer:

330=(4.5x)+24

Step-by-step explanation:

330=(4.5x)+24

-24               -24    subtract 24 from each side

306=4.5x

/4.5   /4.5              divide by 4.5

68 seconds

Write 0.721 as a fraction. Show your work.
ASPP

Answers

Answer:

721/1000

Step-by-step explanation:

0.721/1 × 1000/1000=721/1000

What is the area of a square when one side is 23cm?
(Area = Lenght x Width)

Answers

Answer:

this is the answer hope it helps

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

180= 56+2u+2u

180=56+4u

u= 31

Answer:

31

Step-by-step explanation:

Alexis rolled standard nimber cube 300 times. can you predict the number of times the cube landed on a number greater than 4?

Answers

Answer:

100 times

Step-by-step explanation:

P(5 or 6): 2/6 or 1/3

1/3 · 300 = 100

Which graph represents functions f and g?
f : initial value of 200 decreasing at a rate of 4%
g: initial value of 40 increasing at a rate of 8%

A. The graph with the X-coordinate marks 0, 10, 20, and 30; Y-coordinate marks 0, 50, 100, 150, and 200. There is function curve f with initial value starts from (0, 200) and goes on increasing. It passes through the point (5, 175). There is function curve g with initial value starts from (0, 40) and goes on decreasing. It passes through the point (10, 25).

B. The graph with the X-coordinate marks 0, 10, 20, and 30; Y-coordinate marks 0, 50, 100, 150, and 200. There is function curve f with initial value starts from (0, 200) and goes on decreasing. It passes through the point (25, 25). There is function curve g with initial value starts from (0, 40) and goes on increasing. It passes through the point (5, 50). The both curve intersect each other at the point (14, 70).

C. The graph with the X-coordinate marks 0, 10, 20, and 30; Y-coordinate marks 0, 50, 100, 150, and 200. There is function curve f with initial value starts from (0, 200) and goes on decreasing. It passes through the point (25, 75). There is function curve g with initial value starts from (0, 40) and goes on increasing. It passes through the point (15, 125). The both curve intersect each other at the point (14, 115).

D. The graph with the X-coordinate marks 0, 10, 20, and 30; Y-coordinate marks 0, 50, 100, 150, and 200. There is function curve f with initial value starts from (0, 200) and goes on increasing. It passes through the point (2, 225). There is function curve g with initial value starts from (0, 40) and goes on decreasing. It passes through the point (5, 175).

Answers

The answer is C because it’s the only answer that could be correct.

The length of a rectangle is four times its width,
If the area of the rectangle is 100 in ^2”, find its perimeter

Answers

Answer:

The area of the rectangle = length × breadth

Letting the width = x m

Then, length = 4x m

A = l × b = 100 m²

4x × x = 100 m²

x² = 100/4 m²; then removing the squares

x = 10/2 m

x = 5 m = width

Length = 20 m

Step-by-step explanation:

Hope it is helpful....

Plz explain how to do this!!!

Answers

Answer:

Step-by-step explanation:

You are trying to find the value of K, so to do that you need to get k by itself (example : K= 3-5 instead of K+5= 3)

So in 1a i would simplify 7k-3k= 4k

then 4k=11

now to get rid of the 4 and get the k alone- you DIVIDE 4k by 4 and divide 11 by 4 cause you need to do it on both sides of the equation, it should look like this.

4k= 11

-   =  -

4      4

(4k over 4 and 11 over four)

so the answer is k = 2.75  cause 11/4 = 2.75

Of the 50 plays attributed to a​ playwright, 18 are​ comedies, 13 are​ tragedies, and 19 are histories. If one play is selected at​ random, find the odds against selecting a tragedy or a comedy.

Answers

Answer:

Given:

50 plays

31/50 are comedies or tragedies

19/50 are histories.

If one is selected at random,

the chances decrease dramatically,

so :

19/50 * 19/50 = 361/2500 = .1444

Less than .2 percent.

I may be wrong... Please do not assume I am correct; please check my steps too. Thanks, and good luck.

latest between two digit number and the number obtained by interchanging the position of its digit is 36 what is the difference between the two digit number​

Answers

9514 1404 393

Answer:

  4

Step-by-step explanation:

We assume you're asking the difference between the digits of a two-digit number such that reversing the digits makes the value different by 36.

The difference between the digits is 36/9 = 4.

__

The value difference is always 9 times the digit difference.

More information on this subject can be found at https://brainly.com/question/22693620

Answer:

the answer is 4

Step-by-step explanation:

:)))))))

Quantity A: b = c - 1 Quantity B: c = b + 1
Are Quantity A & Quantity B equal?​

Answers

Answer:

I think it is because if you take 1 from A and but it next to b it's going to be the same with B

-
2
+1 +2
3x - 3
*+2 x + 1)(x+2)
9.
[tex] \frac{x - 3 }{x + 2} + \frac{3x - 3}{(x + 1)(x + 2} = \frac{x}{x + 1} - \frac{x - 2}{x + 2} [/tex]

Answers

Given:

The equation is:

[tex]\dfrac{x-3}{x+2}+\dfrac{3x-3}{(x+1)(x+2)}=\dfrac{x}{x+1}-\dfrac{x-2}{x+2}[/tex]

To find:

The solution for the given equation.

Solution:

We have,

[tex]\dfrac{x-3}{x+2}+\dfrac{3x-3}{(x+1)(x+2)}=\dfrac{x}{x+1}-\dfrac{x-2}{x+2}[/tex]

Taking LCM on both sides, we get

[tex]\dfrac{(x-3)(x+1)+3x-3}{(x+1)(x+2)}=\dfrac{x(x+2)-(x+1)(x-2)}{(x+1)(x+2)}[/tex]

[tex](x-3)(x+1)+3x-3=x(x+2)-(x+1)(x-2)[/tex]

[tex]x^2+x-3x-3+3x-3=x^2+2x-(x^2-2x+x-2)[/tex]

[tex]x^2+x-6=x^2+2x-x^2+2x-x+2[/tex]

On further simplification, we get

[tex]x^2+x-6=3x+2[/tex]

[tex]x^2+x-6-3x-2=0[/tex]

[tex]x^2-2x-8=0[/tex]

Splitting the middle term, we get

[tex]x^2-4x+2x-8=0[/tex]

[tex]x(x-4)+2(x-4)=0[/tex]

[tex](x+2)(x-4)=0[/tex]

[tex]x=-2,4[/tex]

But [tex]x\neq -2[/tex] because for [tex]x=-2[/tex] the given equation is not defined.

Therefore, the only solution of the given equation is [tex]x=4[/tex].

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