2/3 + (-5/7)



.........

Answers

Answer 1

Answer:

-1/21

Step-by-step explanation:

2/3 + -5/7

Get a common denominator of 21

2/3 *7/7 = 14/21

-5/7*3/3 = -15/21

14/21 - 15/21 = -1/21

Answer 2

Answer:

-1/21

Step-by-step explanation:

2/3 + (-5/7)

2/3 - 5/7

Lcm: 21

(2×7 - 5×3)/21

(14 - 15)/21

-1/21


Related Questions

find the missing letter N if the width is 2ft and the area equal 28 sq ft​

Answers

Answer:

Step-by-step explanation:

Area = 28 Sq.ft

length * width = 28

2 * n = 28

Divide both sides by 2

2n/2 = 28/2

n = 14 ft

Each big square below represents one whole.
What percent is represented by the shaded area?​

Answers

Answer:

59%

Step-by-step explanation:

No. of squares in a whole = 10*10=100

No. of spaces shaded = 59

No. of spaces not shaded = 41

Hence, percent represented by the shaded area = 59%

A data set has a lower quartile of 3 and an interquartile range of 5. Which box plot could represent this data set?
0
5
10
15
20
25
5
10
15
20
25
5
10
15
20
25
5
10
15
20
25
Which box plot could represent this data?

Answers

Answer:

First box plot

Step-by-step explanation:

In the figure attached, the options are shown.

The left end of the box is the lower quartile (also called quartile 1 or Q1)

The right end of the box is the upper quartile (also called quartile 3 or Q3)}

The interquartile range (IQR) is computed as follows:

IQR = Q3 - Q1

If Q1 = 3 and IQR = 5, then Q3 = 5 + 3 = 8

The first box plot is the only one with a lower quartile of 3 and an interquartile range of 5

The box plot that could represent a data set that has an interquartile range of 5 is the box plot shown in the image attached below (see attachment).

What is Interquartile Range (IQR)?

Interquartile range (IQR) of a data set is the distance between the lower quartile (Q1) and the upper quartile (Q3) on a box plot.

Thus, a box plot that has a lower quartile of 3 and interquartile range of 5 will have a distance of 5 from the lower quartile to the upper quartile.

Therefore, the box plot that could represent a data set that has an interquartile range of 5 is the box plot shown in the image attached below (see attachment).

Learn more about interquartile range on:

https://brainly.com/question/4102829

Find the value of x
146° (9x + 20)°​

Answers

Answer:

x = 14

Step-by-step explanation:

146° = 9x + 20°

146° - 20° = 9x

126° = 9x

x = 126°/9

x = 14

HELP PLEASE NEED TO TURN IN TODAY ANSWER BOTH OWO

Answers

Answer:12-J 3.169 meters

13-B $11.46

Answer:

12-J 3.169 meters

13-B $11.46

Step-by-step explanation:

Help on this pleasee

Answers

Answer:

When in doubt, pick C

Step-by-step explanation:

I don't know what you're asking

Angles
SU and VX are parallel line.
which angles are alternate exterior angles?
XWY and STR
XWY and VWT
XWY and VWY
XWY and XWT​

Answers

Answer: XWY and STR

I tend to think of parallel lines as train tracks (the metal rail part anyway). Inside the train tracks is the interior region, while outside the train tracks is the exterior region. Alternate exterior angles are found here. Specifically they are angles that are on opposite or alternate sides of the transversal cut.

Both pairs of alternate exterior angles are shown in the diagram below. They are color coded to help show how they pair up and which are congruent.

A thing to notice: choices B, C, and D all have point W as the vertex of the angles. This means that the angles somehow touch or are adjacent in some way due to this shared vertex point. However, alternate exterior angles never touch because parallel lines never do so either. We can rule out choices B,C,D from this reasoning alone. We cannot have both alternate exterior angles on the same exterior side of the train tracks. Both sides must be accounted for.

Finding the Surface Area of a Rectangular Pyrammu

Try it

Henrique drew and labeled the net shown. He also

labeled the areas of the left and right triangular sides.

Use Henrique's work and finish finding the areas of the

faces.

What is the surface area of the rectangular pyramid?

13.6 in.)

13.6 in

4 in

10 in.

Answers

Answer:

The total surface area is 117.2 square inches.

Step-by-step explanation:

The surface area of a rectangular pyramid is formed by one rectangle at the center, and four triangles attached to it.

In this case, the rectangle has dimensions of 10 inches (height) by 4 inches (length). 2 triangles have a base of 10 inches and a height of 5 inches. The other 2 triangles have a an area of 13.6 square inches.

Basically, we need to find the area of the other two triangles and the area of the rectangle at the center.

Area of the rectangle.

[tex]A_{1}=4 \times 10 = 40 \ in^{2}[/tex]

Area of the missing triangles.

[tex]A_{2}= 2(\frac{1}{2} \times 10 \times 5 )=2(25) \ in^{2} = 50 \ in^{2}[/tex]

Now, we sum all areas

[tex]A=40 + 50 + 13.6 +13.6= 117.2 \ in^{2}[/tex]

Therefore, the total surface area is 117.2 square inches.

Answer:

The answer is 117.2 square in

Step-by-step explanation:

I did it on edge and also the person above is correct have a wonderful day

                                                (✿◠‿◠)

When you graduate from high school, you deposit all of your graduation cash into an account earning 5% interest. Ten years from now you will have
$5000 in that account. How much money did you deposit?

Answers

If it’s 5% interest per year, then you deposited $2500. If it’s 5% interest total over the total 10 years, then you deposited $4750

Evaluate the expression below for x = 2, y = –3, and z = –1.

A.

–23

B.

–5

C.

13

D.

27

Answers

Correct question:

Evaluate the expression below for x = 2, y = –3, and z = –1.

Given: [tex] x^2 z^2 -y^2(x+z) [/tex]

Options:

A.–23

B.–5

C.13

D.27

Answer:

B. -5

Step-by-step explanation:

In this question we are given the following values:

x = 2

y = -3

z = -1

Given the expression:

[tex] x^2 z^2 -y^2(x+z) [/tex]

To evaluate, let's substitute for 2, -3 & - 1 for x, y & z respectively

Therefore,

[tex] x^2 z^2 -y^2(x+z) [/tex]

Substituting values, we have:

[tex] (2^2) (-1^2) - (-3^2)(2+(-1)) [/tex]

Simplifying, we have:

[tex] [(2^2) (-1^2)] - [(-3^2)(2-1)] [/tex]

[tex]= [(4) (1)] - [(9)(1)] [/tex]

[tex]= 4 - 9[/tex]

= -5

The correct answer is option B

. A kite is in the shape of a parallelogram
with a 4.5 cm base and a height of
7.9 cm. What is the area of the kite?

Answers

Answer:

I believe the answer is 35.55 cm

Step-by-step explanation:

Answer:

35.55 cm

Step-by-step explanation:

To find the answer of this question is to use the method bxh.

  4.5 cm

x 7.9 cm

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

  35.55 cm

A bottle contains 10.5 cups of orange juice. You drink 1.2 cups of the juice each morning and 0.9 cups of the juice each afternoon. How much total juice do you drink each day? When will you run out of juice?

Answers

Answer:

2.1 cups per day and you will run out of juice in 5 days.

Step-by-step explanation:

1.2 cups + .9 cups = 2.1 cups per day

10.5 divided by 2.1 = 5 days

From the equation calculated, 2.1 cups of juice will be drank daily.

The total juice that will be drank each day will be:

= 1.2 + 0.9 = 2.1

Therefore, 2.1 cups of juice will be drank daily.

The number of days before the person runs out of drink will be:

= 10.5 / 2.1

= 5

The person will use 5 days before running out of drink.

Learn more about equation on:

https://brainly.com/question/13802812

Identify the equation or inequality of the graph

A)2x-3y=6
B)3x+2y=-6
C)2x-3y=-6
D)3x-2y=6

Answers

Answer:b

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

HALF LIFE The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning,
how many grams would be left after 7.2 minutes has elapsed?

A: 50.0 grams
B: 100.0 grams
C: 8.5 grams
D: 12.5 grams

Answers

Answer:

7.2 / 2.4 = 3 half-lives

(1/2)3 = 0.125 (the amount remaining after 3 half-lives)

100.0 g x 0.125 = 12.5 g remaining

Hope this Helped! :)

Sondra gets $75 a week, plus 10 percent of sales. Which equation best represents her salary? Group of answer choices

Answers

75 + (10/75)
I do not know for sure

What does reflection mean?

Moving back and forth quickly
Speed of vibration
Bouncing light of a shining surface
Loudness or quietness

Answers

Step-by-step explanation:

Reflection mean bouncing light of a shining surface.

Please HELP!!!!!!!!!

Answers

Answer:

The sides are 3 and 9

Step-by-step explanation:

Since this is a right triangle, we can use the pythagorean theorem

a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse

x^2 + (3x)^2 = (3 sqrt(10))^2

x^2 + 9x^2 = 9*10

10x^2 = 90

Divide each side by 10

x^2 = 90/10

x^2 =9

Take the square root of each side

x = sqrt(9)

x = 3

The sides are x=3  and 3x = 3(3) = 9

Answer: x=10

Step-by-step explanation:

Since the original statements were x, 3x, and 3[tex]\sqrt{x}[/tex], is already given as 10 in 3[tex]\sqrt{x}[/tex], therefore, 3x is 3*10 and x is 10

Which is the graph of r = 6 cose?

Answers

Idk
Evidence everything

PLEASE HELP!! (will give brainliest for best answer)
(image below)

e) The diagonal of square A, marked off by the red stars, is where the concession stand is located. A local high school band is performing at the outdoor theater on a summer evening. The band has a school banner that is 40-feet long, and band members would like to hang it across the concession stand to let people know they are performing. Estimate the length of the concession stand to determine if the school banner can fit across the length of the concession stand. Show your work and explain your reasoning. (2 points)

Answers

Answer:

i think the answer should be 60 ft long bc that would leave 10ft on each side of the banner

Step-by-step explanation:

hope this helps

Extr. p
Help Me Quick!! thank you so much in advance!

Answers

Answer:

option ;

Step-by-step explanation:

Your answer here will be

;

20 points if you can help me with problem 2.

Answers

I think it’s 9 in the 3rd lane the 3 rd one

Answer:

3, 4, 5, 6, 7, 9, 10, 11

Step-by-step explanation:

Actually it's 10 points but whatever:

I number the figures like this:

1, 2, 3

4, 5, 6

7, 8, 9

3, 4, 5, 6, 7, 9, 10, 11 work because if you cut them out and glued the sides correctly, it will become a cube.

Pls I need this right away if you answer I’ll mark you the brainliest. Pls put how you got your answer too!

Answers

Answer:

6 cube/to the 3rd units

Step-by-step explanation:

um idk if this is what you want but yeah

if you spilt it into a 2x2x1 and a 1x2x1 you can count that there are 6 cube units

Answer:6 cubes

Step-by-step explanation:

There are 2 ways that I think you could solve this.

1. First, you could make those 2 missing cubes actual cubes, so then you could find the volume of the cube by doing 2x2x2(length x width x height) and you would get 8 cubes. After that, you would take away the two missing cubes, and you would get 6 cubes.

2. You could also just count the cubes. I counted the two inner cubes and then counted the 4 outer cubes, and got 6 cubes.

Hope this helps!

Find the area. Will mark brainliest.

Answers

Answer:

11.56m²

Step-by-step explanation:

3.4×3.4=11.56m²

Answer:

11.56

Step-by-step explanation:

The diagram below is divided into equal parts. Which shows the ratio of unshaded sections to shaded sections

Answers

Answer:

5 to 1.

Step-by-step explanation:

There are 5 unshaded and one shaded section so it's

5:1.

The ratio of unshaded sections to shaded sections is;

Option D; 5 to 1

We are told that the diagram is divided into equal parts.

Now, from the given, we can see that there are 6 equal parts. However, out of the 6 equal sections, only one section is shaded while 5 sections are unshaded.

This means that the ratio of unshaded sections to shaded sections is; 5 to 1.

In conclusion, the ratio of unshaded sections to shaded sections from the given diagram that was divided into equal parts is; 5 to 1.

Read more at; https://brainly.com/question/20094176

Please help with this

Answers

Answer:

[tex]\frac{\sqrt{8} }{\sqrt{10} }[/tex]

Step-by-step explanation:

A perfect square is a number that has two identical factors, meaning it can be square rooted. The numbers 64 and 100 are an example:

8 · 8 = 64

10 · 10 = 100

So when you take the square root of [tex]\frac{64}{100}[/tex], you get:

[tex]\frac{\sqrt{8} }{\sqrt{10} }[/tex]

It doesn't say to simplify, so we can just leave it at that.

PLZ I NEED HELP ASAP
Evaluate 5/6 ÷(a+b) for a= 1/2 and b=− 2/3 . Record the answer in the simplest form.

Answers

Answer:

-5

Step-by-step explanation:

make the decimals have the same bottom by mutiplying by 3 in the top and the bottom. and not adding the bottms to make 12 instead stay at 6. Add. then you can easliy divide from there. using the keep change flip.

Answer:

-5

Step-by-step explanation:

make the decimals have the same bottom by multiplying by 3 in the top and the bottom. and not adding the bottoms to make 12 instead stay at 6. Add. then you can easily divide from there. using the keep change flip.

help please!!!!!!!!!!

Answers

Answer:

[tex]15 × 10^{0}[/tex]

Step-by-step explanation:

5 × 10^-7 × 3 × 10^6

15 × 10^-1

= 1.5 × 10^0

Answer:

15 × 10^{-1} is the correct

Step-by-step explanation:

tEN Percent of $4.30

Answers

Answer:

0.43

Step-by-step explanation:

We can move the decimal to the left if it is ten percent multiplied and we see here that we multiply the 10 percent.

Answer:

.43

Step-by-step explanation:

ten percent of 4.30

10% * 4.30

Change to decimal form

.10 * 4.30

.43

Sara solved the equation -6(x-2) + 3x = -3(x+3) + 21 What is the solution?
pls help :)

Answers

To solve you can use inverse operations.

Here are the steps to find the answer:

1. Write out the equation: -6(x-2)+3x= -3(x+3) +21

2. Distribute both sides: -6x+12+3x= -3x-9+21

3. Simplify both sides: -3x+12=-3x+12

4. This equation is true for all values, or infinity, because the equation is the same on both sides

Let me know if you need further explanation. I hope this helps.

Jael and Kelsey work at a bakery. Jael makes 8 cupcakes for every 5 cupcakes that Kelsey
makes. If Kelsey makes 175 cupcakes in one day, what is the total combined number of cupcakes that Kelsey and Jael make in one day?

Answers

Answer:

35

Step-by-step explanation:

175/5

Answer:

455 cupcakes

Step-by-step explanation:

If Jeal makes 8 cupcakes for every 5 cupcakes that Kelsey makes and Kelsey made 175 cupcakes then you divide 175 by 5 and you get 35. Then mulitply 35 by 8 and you will get 280. Lastly you add 175 and 280 and you will get 455.
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