Translate the sentence into an equation.
Twice the difference of a number and 7 is equal to 9 .
Use the variable Y for the unknown number.

Answers

Answer 1

Answer:

equation: 2(Y-7) = 9

Here the number is twice the difference.the difference is 7, so Y - 7Equals to 9.

Related Questions

Mike wrote down a number on a piece of paper and hid it from his friends. He rounded his number to different places and his friends had to guess what the number was.

First, Mike rounded his number to the nearest ten.
Then, he rounded his number to the nearest hundred.
Last, he rounded his number to the nearest thousand.
All three times, the rounded number had the same value.
Which of these could be his number?

145,998
7,002
4,506
26,991
12,497

Answers

Answer: 145,998, 7,000, and 25,991

My guess :))

Step-by-step explanation:

145,998  7,002  4,506  26,991   12,497

First, Mike rounded his number to the nearest ten

146,000  7,000  4,510   27,000   12,500

Then, he rounded his number to the nearest hundred.

146,000  7,000  4,500  27,000   12,500

Last, he rounded his number to the nearest thousand.

146,000  7,000  5,000  27,000   12,000

does it look correct

Answers

Answer:

The box that says 8 is greater than 8 is wrong, you did the ones so it should be 8 is greater than 6 --> 8>6

also I think the right side should be like this ---> 42>22 64>46 88>86 92>29

Charlie is given a box of chocolates.
There are 12 milk chocolates, 8 dark chocolates and 6 white chocolates.
What is the probability that Charlie will pick a white chocolate?
Without replacing the chocolate, what is the probability that the next chocolate Charlie picks will be a milk
chocolate?

Answers

Answer:

probability of white chocolate is 0.0016=16 percent 26 percent is the probability of of him picking chocolate


Half the number of people in a train carriage are adults
and half of the adults are women. If there are 28 women,
how many people are in the carriage altogether?

Answers

Answer:

56

Step-by-step explanation:

56÷2=28 28+28=56 So its 56 all together

Chad has a part-time job at Softy's Ice Cream Shop, where he makes $12.50 per hour. If Chad works 13.5 hours this week, how much money will he earn?

Answers

Answer:

He can make $ 168.75 per week.

Step-by-step explanation:

1hr =$ 12.50

For 13.5 hrs,

12.5*13.5

= 168.75

Help math math math math

Answers

Hi there! I am here to help you!

Please remember that perpendicular lines have slopes that are opposite reciprocals.This means we take a number, flop it over, and change its sign.Here, we have[tex]\displaystyle-\frac{1}{5}[/tex]First, flop it over:[tex]\rm{-5[/tex]Change its sign:5Thus, the slope of the line perpendicular to the given line is 5.Now, what is the equation of the line?We have the slope of the line and a point that it intersects.So, we can write the equation in Point-Slope Form:y-y1=m(x-x1)y-1=5(x-(-5)y-1=5(x+5)y-1=5x+25y=5x+25+1y=5x+26

Answer:

y=5x+26

Hope you find it helpful.

~Nature~

Enjoy your day! :)

Answer:

The answer is y=5x+26

Use intercepts to graph the linear equation -4x+3y=-30 .

Answers

Answer:

See below

Step-by-step explanation:

Y-intercept

-4x + 3y = -30

-4(0) + 3y = -30

3y = -30

y = -10

(0, -10)

X-intercept

-4x + 3y = -30

-4x + 3(0) = -30

-4x = -30

x = 15/2

x = 7.5

(7.5,0)

After plotting the intercepts, connect them with a line to get your equation

I NEED HELP ASAP ON THIS!!!
Please help me on 4,5,6, and 7.

Answers

Answer:

4. m<3 = 120

5. m<4 = 13

6. m<2 = 70

7. m<1 = 115

Step-by-step explanation:

4. m<3 = 120, this is because it is the same as m<1 due to vertical (congruent) angles

5. m<4 = 13, this is because it is the same as m<2 due to vertical (congruent) angles

6. m<2 = 70, this is because m<2 and m<3 are supplementary (adding up to 180) so we would subtract 180 - 110 (aka m<3) = 70 (aka m<2)

7. m<1 = 115, this is because m<1 and m<4 are supplementary (adding up to 180) so we would subtract 180 - 65 (aka m<4) = 115 (aka m<1)

please help if u can thank you:)​

Answers

It's number three because the two triangle are congruent (aas),

So, Angle CED would equal ACB, and ACB is 180-70-p, which is also

110-p

-Hunter

9. Factorise: 1 - (a - b)2​

Answers

Answer:

-2a+2b+1 is the answer hope this helps

1. What is one fourth of 116?




2. The deli made 105 bacon egg and cheese sandwiches and 123 turkey sandwiches.
Once the day was over, the deli workers noticed they sold one half of their sandwiches,
How many sandwiches did they sell?

Answers

1. 29


2. 114 deli sandwiches

3 9 90 and 4 2 20 and 5 7 ?

Answers

Answer:

3 9 90 =3²+9²=90

4 2 20 =4²+2²=20

5 7 =5²+7²=74

The missing term in the series is 74.

What are Numbers?

The mathematical way to display the quantity involved is called Numbers.

The given figure shows a sequence being followed for the third number.

The third number below the triangle is the sum of squares of the two numbers above the triangle.

3² + 9²  = 90

4² +2²  = 20

5² +7² =25+49 = 74

Therefore, the missing term in the series is 74.

To know more about Numbers

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Which expressions are equivalent to 4d+6+2d

(Choice A) 2(3d+3)
(Choice B) 6(d+6)
(Choice C) (3d+3)+(3d+3)

Answers

Answer:

(Choice A) 2(3d+3) & (Choice C) (3d+3)+(3d+3)

Step-by-step explanation:

[tex]4D + 6 + 2D = 6D + 6 = 2(3D + 3)[/tex] <--- A is correct

[tex]4D + 6 + 2D = 6D + 6 = 6(D +1)[/tex] < --- B is NOT correct

[tex]4D + 6 + 2D = 6D + 6 = 3d + 3d + 3 + 3 = (3d + 3)+(3d +3)[/tex] by associative and commutative properties

   so C is correct

A and C are both correct.

Answer:

Choices A and C

Step-by-step explanation:

Start by simplifying the original expression.

4d+6+2d

Combine like terms

6d+6

Now, we can check each expression to see if it is equivalent to 6d+6

Choice A:

2(3d+3)

Distribute the 2

2(3d)+2(3)

6d+6 --> It is equivalent!

Choice B:

6(d+6)

Distribute the 6

6(d)+6(6)

6d+36 --> No, it is not equivalent

Choice C

(3d+3)+(3d+3)

The parentheses aren't necessary so we can take them out.

3d+3+3d+3

Combine like terms

6d+6 --> It is equivalent!

(16x 10 15) - (7 10 15) simplified​

Answers

Answer:  7.5 = 75/10 which can be simplified to 15/27.5 = 75/10 which can be simplified to 15/27.5 = 75/10 which can be simplified to 15/27.5 = 75/10 which can be simplified to 15/2

Step-by-step explanation:

write the following fractions in word. 3/4, 1/5, 3/4, 1 3/5.. please help me​

Answers

Answer:

"In word" as in word form?

3/4 = three fourths

1/5 = one fifth

3/4 = three fourths (again?)

1 3/5 = one and three fifths

Given the function h(x)=-x^2-6x+17, determine the average rate of change of the function over an interval -9

Answers

Answer:

5

I hope this helps you:)

What is 3*ln(5)? Expanded and get the exact answer.

Answers

Answer:

  ln(125) ≈ 4.828314

Step-by-step explanation:

The relevant log relation is ...

  log(a^b) = b·log(a)

__

This means your expression is equivalent to ...

  3·ln(5) = ln(5^3) = ln(125) ≈ 4.828314

__

The "exact" answer is ln(125).

Agency leadership is very interested in trend analysis. Using the 750 randomly selected vehicles as their​ sample, data was collected to determine which vehicles currently meet or exceed fuel economy standards and which vehicles currently do not meet fuel economy standards. This information is found in the Meet or Not Meet Current Standards column. Agency leadership asks your team to construct a​ 95% One-Sample proportion confidence interval for the population proportion of all vehicles that meet current fuel economy standards. Assume that all necessary Central Limit Theorem conditions for a​ One-Proportion confidence interval have been met. What is the​ 95% lower​ limit?

Answers

Using the z-distribution, as we are working with a proportion, considering that the estimate is of 90%, the 95% lower​ limit is of 0.8785.

What is a confidence interval of proportions?

A confidence interval of proportions is given by:

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which:

[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.

In this problem, we have that:

There is a 95% confidence level, hence[tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex]. We suppose an estimate of [tex]\pi = 0.9[/tex].The sample size is of n = 750.

Hence, the lower bound of the interval will be given by:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.9 - 1.96\sqrt{\frac{0.9(0.1)}{750}} = 0.8785[/tex]

More can be learned about the z-distribution at https://brainly.com/question/25890103

A quarter-circle is drawn onto one of the shorter sides of a rectangle. The shorter side of the rectangle measures 4 centimeters. The
area of the figure is 33.4 square centimeters.
What is the length of the longer side of the rectangle?
Use 3.14 for 71
Enter your answer as decimal in the box.

Answers

Answer:

5.21 i took the test

Length of longer side of the rectangle in which a quarter circle is drawn onto the shorter side is 5.12 cm

What is area of a geometric shape?

The area of a two dimensional shape is the space enclosed by the boundary of the shape. The area of a rectangle is the product of its length and breadth, the area of a circle is π×(radius)².

Given that, the shorter side of a rectangle is 4cm.

Let the length of the longer side of the rectangle is x.

Then, the area of rectangle is 4x

Also, the sum of area of rectangle and a quarter circle is 33.4cm²

And the radius of quarter circle = shorter side of rectangle

Therefore, area of quarter circle = (1/4)×π(4)²

According to question,

    4x + (1/4)π(4)² = 33.4

     4x + 4π = 33.4

     4x = 33.4 - 4×3.14

     4x=20.84

       x=5.21

Hence, the longer side of rectangle is 5.21 cm when the shorter side is 4cm and a quarter circle is drawn onto the shorter side of the rectangle.

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Help please with this math homework #help

Answers

Answer:

128/15 glass of water

Step-by-step explanation:

3/4 hrs = 4/5 of 8 = 32/5

Now,

1 hr = 32/5/3/4

or, 1 hr = 32/5 × 4/3

or, 1 hr = 128/15

In a race you walked 9 5/6 miles and ran 1 1/3 miles.
How much further did you walk than run?
Do not reduce your answer to lowest terms.

Answers

Answer:

23/6 or 3 5/6

Step-by-step explanation:

Well, here you just have to subtract and think about the question.

Walk = 9 5/6

Run = 1 1/3

9 5/6 - 1 1 /3 = 23/6

23/6 = 3 5/6

Consider the following graph of g(x). Write a formula for g(x) that describes the transformations performed on the basic function.

Answers

The resulting equation of the given graph will be -|x+1|

Transformation of graph

The parent function of the given graph function is given as:

f(x) = |x|

The given graph shows a reflection over the x-axis and a horizontal translation by 1 unit to the left

Reflection = -|x|

Horizontal shift = -|x+1|

The resulting equation of the given graph will be -|x+1|

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What is the difference between the volumes of the Chunky Chicken Noodle Soup can and the Condensed Chicken Noodle Soup can? Use 3. 14 for pi in all calculations you must show your work what you multiplied to find the volumes of both cans and the difference between the two volumes.

Answers

Answer:

1. The formula used to find the volume of a cylinder is v = π * r^2 * h, where r is the radius and h is the height.

2. 3746.648

Step-by-step explanation:

2.

Let's start by finding the volume of the Chunky Chicken Noodle Soup.

When applying the formula, we get an equation: v = 9.8596 x 36 x 15The volume is 5324.184

Now, let's find the volume of the Condensed Chicken Noodle Soup.

When applying the formula, we get an equation: v = 9.8596 x 16 x 10The volume is 1577.536

Finally, let's subtract the total volumes.

5324.184 - 1577.536The final answer is 3746.648

please do this you will be marked brainliest

Answers

Answer:

z ∈ { 12, + ∞ >

Alternate form: z ≥ 12, { z l z ≥ 12 }

Step-by-step explanation:

1- Determine the defined range

2- Factor the expression

3- Simplify the root

4- Move the variable to the left

5- Separate into possible cases

6- Solve

7- Find the intersections

8- Find the union

Answer: Z ≤ 12

The correct answer is "Z is less than or equal to 12", Z ≤ 12.

Step-by-step explanation:

Hope this helps.

Angle C and angle D are supplementary. If the measure of angle D is 84 degrees, what is the measure
of angle C?

Answers

Suplementary is angles add up to 180 degrees

C=180-D

C=180-84

C=96 degrees

Hope this helped :)

Name one person in hxh that is attracted to gon yes the seually attracted

Answers

Answer:

Hisoka FS no doubt he is most def BRAINLIEST???

A square represents
1 whole and each triangle represents 2 of a whole. How
would you represent 3 1/2?

Answers

If one square = whole
And if triangle = 1/2 whole
3 1/2 = 1 TRIANGLE and 3 SQUARES
or 7 triangles
or 3 triangles and 2 squares
or 5 triangles and 1 square

How to find the area of a triangle when the height is not given ?​

Answers

Answer:

by using formula a+b+c .....

Answer:

Then use Hero's Formula

Step-by-step explanation:

Determine the area of the composite figure.

Answers

Answer:

Area = 142.5 square inches

Step-by-step explanation:

So your shape is kind of a little house. The bottom part is a rectangle 9 × 9.5. The area of the rectangle is

Area = length×width

= 9 × 9.5

= 85.5

The "roof" of the little house is a triangle. The area of a triangle is 1/2×base×height

Now, the base of the "roof" is the same as the floor of the house, 9.5 inches.

The height of the whole thing is 21 inches. If we take away the rectangle's wall-height, we'll get the height of the "roof".

Roof height= 21 - 9

= 12 inches

Area_roof

=1/2 × base × height

=1/2 × 9.5 × 12

= 57 square inches

Total area is bottom plus roof (the rectangle and the triangle)

Total Area

= 85.5 + 57

= 142.5 sq in

Y=2x
Y=3x-10

What is the solution to the system of equations

Enter your solution as an ordered pair ( , )

Answers

[tex]\large \bf\blue{\bigstar\boxed{\pink{\frak{Solution}}}} \blue{ \bf\longmapsto}[/tex]

Y=2x. . . . (1)Y=3x-10. . . . (2)

put value of y in 1 eq in 2 eq

y= 3x - 102x = 3x - 10x = 10

Put value of x in 1 eq

y = 2xy = 2 × 10y = 20

Pair formed

(x , y) = (10,20)

The solution to the system of equations will be (x, y) = (10,20).

What is the equation?

In a mathematical equation, two expressions—which may or may not include variables or integers—are declared to be equal. The main motivations for the development of mathematics have been attempts to methodically address the underlying issues with equations.

It is given that, the equations are y=2x and y=3x-10.

Y=2x. . . . (1)

Y=3x-10. . . . (2)

put the value of y in 1 eq in 2 eq in order to find the value of x.

y= 3x - 10

2x = 3x - 10

x = 10

Put the value of x in 1 eq in order to get the value of y,

y = 2x

y = 2 × 10

y = 20

Pair formed

(x , y) = (10,20)

Thus, the solution to the system of equations will be (x, y) = (10,20).

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