Nick was thinking of a number. Nick doubles it, then adds 15 to get an answer of 77.4. What was the original number?

Answers

Answer 1

Answer:

31.2

Step-by-step explanation:

it should be the answer

Answer 2

Answer:

31.2

Step-by-step explanation:

First, subtract 15. This makes 62.4. Then divide by 2, which gets 31.2


Related Questions

ܘdetermine the slope of the line please explain your answer .

Answers

Answer:

7/2

Step-by-step explanation:

7 up and 2 right and that would be the slope being 7 over 2

Answer:

6/2=3

Step-by-step explanation:

6 units up and 2 units right positive slope, simplify =3

Systems of equations by substitution

Answers

x + 3 = 2x +5
-x -5 = -x - 5
x = -2

Answer:

(-2,1)

Step-by-step explanation:

Substitute the value of y (x+3) from one equation into the second equation (2x+5)

X+3 = 2x + 5

add -2x to both sides

-x+3=5

add -3 to both sides

-x=2

x=-2

substitute -2 for x in either equation to find y.

y=-2+3

y=1

Check your answer by substituting x and y into either equat to make sure it equals.

y=x+3

1=-2+3

1=1

or

y=2x+5

1=2(-2)+5

1=-4+5

1=1

find the radian measure of a central angle of a circle with the radius of 13 feet that intercepts an arc of length 26 feet

Answers

Answer:

0.64π rad

Step-by-step explanation:

The formula for calculating the length of an arc is expressed as;

length of an arc = theta/360 * 2πr

r is the radius = 13 feet

arc length = 26feet

Substitute

26 = theta/360 * 2(3.14)(13)

26 = 81.64 theta/360

81.64 theta = 26 * 360

81.64 theta = 9360

theta = 9360/81.64

theta = 114.64

Hence the radian measure is 114.64/180 π = 0.64π rad

Order the value of the quotient from the smallest (top) to largest (bottom)



2/7 divided by 4/5
1 6/7 divided by 3
6/11 divided by 2 2/3
3/10 divided by 1/8

Answers

Answer:

6/11 divided by 2 2/3 (=9/44)

2/7 divided by 4/5 (=5/14 or 15/42 scaled up)

1 6/7 divided by 3 (= 13/21 or 26/42 scaled up)

3/10 divided by 1/8 (=2 2/5)

Step-by-step explanation:

You cannot divide a fraction by a fraction. Instead, multiply by the reciprocal ( flip it)

2/7 divided by 4/5= 2/7 x 5/4

Multiply straight across the top, 2x5= 10

10 is the numerator

Now multiply straight across the bottom.

7x4= 28

28 is the denominator.

10/28 is the answer to this problem, however it can be simplified. Both 10 and 28 are divisible by 2. This simplifies to 5/14.

For mixed numbers, you first have to make them improper fractions.

Ex: 2 2/3

Take the denominator (3) multiply it by the whole number (2) and add the numerator (2)

3x2=6 (now add the remaining 2 from the numerator) 6+2= 8. 8 is your new numerator and you will keep the existing denominator of 3 making the improper fraction 8/3.

Solve x^2+32=0
Please solve step by step

Answers

Answer:

......

...............................

PLEASE HELP!!!!!!!!Drag the number cards to create a correct sentence

Answers

5% of 128 is 64
Reasoning: there are multiple possible answers, and here is an acceptable one.

The sequence that fulfills all the conditions is 4% of 250 = 10.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

From the table and a bit of thinking, we can construct a sequence that has whole value and percentage value as integers.

After trying with different sequences and by hit and trial we found a sequence that is,

4% of 250 = 10 which fills all the conditions.

learn more about percentages here :

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One of the teachers at a school is chosen at random. The probability that this teacher is female is 3/5 There are 36 male teachers at the school. Work out the total number of teachers at the school.

Answers

Answer:

90 total teachers

Step-by-step explanation:

The total number of teachers at the school is 90 whereas there are  36 female and 54 male teachers.

Probability-based problem:

What information do we have?

Probability teacher is female = 3/5

Number of male teachers = 36

Probability teacher is male = 1 - (3/5)

Probability teacher is male = 2/5

Total number of teacher = (5/2)(36) Total number of teacher = (5)(18)

Total number of teacher = 90 teachers

the total number of teachers in the school is 90 teachers.

Find out more information about 'Probability'.

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Max is designing a bedroom. The bedroom needs to be 30 cubic meters when finished. What might the dimensions be? Give two answers

Answers

Answer:

3.10 m

Step-by-step explanation:

The bedroom needs to be 30 cubic meters when finished.

We need to find the dimensions of the room.

The volume of a cube is given by :

[tex]V=a^3[/tex]

Where

a is the side of the cube

So,

[tex]a=(V)^{1/3}\\\\a=(30)^{1/3}\\\\a=3.10\ m[/tex]

So, the dimension of the room is 3.10 m.

What is the perimeter and area

Answers

Answer:

Perimeter = 18

6 + 6 + 3 + 3=18

Area= 18

6 x 3 = 18

Step-by-step explanation:

I hope this can help!!!

Please help
How can you describe the graph of the equation y = mx? Explain

Answers

Answer:

Every straight line can be represented by an equation: y = mx + b. ... The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.

Step-by-step explanation:

hope this helps.

:)

Determine Whether 5c/15c^2 +7d is a polynomial. If it is a polynomial, state the degree of the polynomial

Answers

Yes it a polynomial at the degree 5

How do I simplify 6x+4x-10(2)

Answers

Answer:

10x-20 uhhh yeah that's the answer

solve systems substitution. y=4x-13 3x-3y=12

Answers

I have no clue but i wish you the best of luck

Suppose that we agree to pay you ​9¢ for every problem in this chapter that you solve correctly and fine you ​5¢ for every problem done incorrectly. If at the end of 42 problems we do not owe each other any​ money, how many problems did you solve​ correctly?

Answers

The answer is 10 problems. Hope it helps

Let y=2 for each equation. Find the value of x.

3x-2y=1

Answers

Answer: x = 1.6667

Step-by-step explanation:

3x - 2(2) = 1

3x - 4 = 1

3x = 1 + 4

3x = 5

x = 5/3

x = 1.6667

The corner market sold 24 prints on monday and 18 prints on tuesday how many prints did the market sell on those two days

Answers

Answer:Number of prints sold on these  two days =42 Prints

Step-by-step explanation:

Number of prints sold on Monday = 24

Number of prints sold on Tuesday= 18

Number of prints sold on these  two days =Number of prints sold on Monday +Number of prints sold on Tuesday= 24+ 18 = 42 Prints

What is the equation of the line perpendicular to 3x+y=6 that passes through the
point (-6, -1)?

Answers

Answer: y = -1/3x - 3

Step-by-step explanation:

First, convert this equation into slope intercept form (y = mx + b where m is the slope and b is the y-intercept)

To convert this equation into slope-intercept form, all you have to do is subtract 3x from both sides to give you the equation y = 3x + 6

Next, you need to find the slope of your new equation. The slope of a perpendicular line will have a slope that is the opposite reciprocal of the first slope, which means it will have the opposite sign and the fraction will be flipped (even whole numbers are a fraction - they are divided by 1)

Since the slope of the first equation is positive 3, you are going to change the sign to a negative and flip the fraction from 3/1 to 1/3, which gives you a slop of -1/3

Now that you have your slop, you need to find your y-intercept. To do this, you use the point that you are given. In the previous step, you figured out the slope, so now you can enter that into your new equation. Then, plug the x-coordinate in for x and the y-coordinate in for y in the equation.

At this point, your equation is y = -1/3x + b. You can plug -6 in for x and -1 in for y to give you the equation -1 = -1/3(-6) + b

The next step is to solve the equation like you would any other equation.

Multiply -6 by -1/3 to get 2, then subtract 2 from -1 to get b = -3

Lastly, create your new equation in slope-intercept form with the values you have found.

y = -1/3x -3

How many t-shirts could be made where the cost would be the same from both companies?

Answers

10 shirts could be made

Suppose you are the manager of a high school cafeteria. You want to create a new breakfast and lunch menu for the students. Describe at least two different methods that could be used to collect data about food items to offer on the menu. How can you ensure that the results are reliable? Explain.

Answers

Answer:

by making a recipt with a cash machine or putting a thing for everytime someone buys something

Step-by-step explanation:

A diameter is a chord.
True or false and why?

Answers

Answer:

true.

A chord that passes through the center of a circle is called a diameter and is the longest chord.

Step-by-step explanation:

A diameter satisfies the definition of a chord, however, a chord is not necessarily a diameter. This is because every diameter passes through the center of a circle, but some chords do not pass through the center. Thus, it can be stated, every diameter is a chord, but not every chord is a diameter.

i hope this helps you.      :)

If Raelynn had 2,000 apples and she made apple juice which takes 100 apples to make, how many bottles of apple juice will Raelynn have?

Answers

2000 divided by 100 is 20 so answer is 20


which of the following is the equation of the line that creates the x-axis?
(1) y=0
(3) y=x
(2) X=0
(4) y=x+1

Answers

(3) y=x




Explaination:

The equation of the line that creates the x-axis will be y = 0. Then the correct option is A.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The slope of the line with the x-axis will be zero. Then the equation is given as,

y = (0)x + c

y = c

The x-axis is passing through the origin (0, 0), then the value of the variable 'c' is given as,

0 = c

Then the equation is written as,

y = 0

The equation of the line that creates the x-axis will be y = 0. Then the correct option is A.

More about the linear equation link is given below.

https://brainly.com/question/11897796

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cual es la fraccion intermedia de 2\4 y 3\4​

Answers

Answer:

10t-2b-2

Step-by-step explanation:

5+2-2123

Respuesta:10t-2b-2
Explicación pasó a paso:5+2-2123

Good night! I need helppppp with math, easy for most people, just not for me lol

Answers

Answer:

3/4 should be left in the bottle

1.5 L would be left after a quarter of 2L is taken away

Please help with this if possible :)

Answers

Answer:

PB=180 degrees

Step-by-step explanation: if im wrong its because im s t u p i d as h e c k

Answer:

PB = 9

Step-by-step explanation:

a^2 + b^2 = c^2

PC^2 + CZ^2 = PZ^2

CZ = 12

BZ = CZ

PB^2 + BZ ^2 = PZ^2

PB = 9

In ΔKLM, the measure of ∠M=90°, LK = 97, ML = 65, and KM = 72. What is the value of the sine of ∠L to the nearest hundredth?

Answers

Answer:

Step-by-step explanation:

Answe is 0.74

Answer:

cos⁡L=adjacenthypotenuse=817≈0.4706≈0.47cosL=hypotenuseadjacent​=178​≈0.4706≈0.47

Step-by-step explanation:

KLM15817(opposite of ∠L)(adj. to ∠L)(hypotenuse)Find cos⁡LFind cosLSOH CAH TOASOH CAH TOA

Triangle XYZ is reflected across the y-axis, and X = (4, –5). What are the coordinates of X’ ?

Answers

Answer:

Step-by-step explanation:

Anytime a reflection takes place across the y axis, the x value does the changing. It's sign becomes the opposite of what it is now.

In plainer language,

the x value = 4It's reflected across the y axis.It's value becomes - 4X' = (-4,-5) The y value of the point does not change.

PLEASE HELP ILL GIVE 25 POINTS FOR IT

Write an indirect proof that a right triangle has exactly two acute angles

Answers

90/2 = 45 degrees twices
These both are 45 degrees which is less than 90

12x-4y=24 solve for y

Answers

-4y = 24 - 12x

4y = 24 + 12x

y = 6 + 3y

What are the values of T and U?

Answers

Answer:

u+133°=180

u=180-133

u=47°

Answer:

U = 47

T = 86

Step-by-step explanation:

133 + U = 180 ( straight line)

or, U = 180 - 133

or, U = 47

Being isosceles triangle

47 + 47 +T = 180

or, 94 + T = 180

or, T = 180 - 94

or, T = 86

hope it will help you

Other Questions
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