Mathematics Middle School

Solve this question

Answers

Answer 1

Answer:

2 2/3

Step-by-step explanation:

-2 1/3 - - 5= ?

-2 1/3 + 5=2 2/3

Answer 2

Answer:

2 2/3

Step-by-step explanation:

Related Questions

The diagram below shows ΔPQT; its altitude, which is segment PR ; and some of its measurements.

(a) What is mTPR? Show or explain how you got your answer.

For Parts (b), (c), and (d), write the exact answer in simplified radical form.

(b) What is the length, in inches, of segment PR? Explain your answer.

(c) What is the length, in inches, of segment TR? Explain your answer.

(d) What is the length, in inches, of segment PQ? Explain your answer.

Answers

Answer:

i need some poitns plssss

George still has 40 percent of his book to read. If George has read 180 pages, how many pages does he still have to read? How do you know?

Answers

Answer: 72

Step-by-step explanation: so you do a line = line method the lines should look like they are fractions.

you do it for the both numbers the percent is always out of 100.

it should look like this

40% ?

--------- = -----------

100% 180

then you cross multiply 40 and 180 and than divide it by 100. your answer should be 72. you later replace the ? with 72

you know this because It is smaller than 180 and its bigger than the number 40.

The number pages left to read is 12 pages.

Given that, George still has 40 percent of his book to read.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Let the total number of pages be x.

Now, x-40% of x=180

⇒ x-0.4x=180

⇒ 0.6x=180

⇒ x=180/0.6

⇒ x=300

So, remaining pages = 300-180=120

Therefore, the number pages left to read is 12 pages.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ2

5
Amelia and Roger both
found the volume of the sphere
below. Determine which
student correctly determined
the volume of the sphere.
3 cm
AMELIA
113.10 cm
ROGER
14.14 cm

Answers

Answer: the last one

Step-by-step explanation:

Kira is using the figure shown to prove the Pythagorean theorem. She starts by writing the
equation (a + b)2 – 2 = 4( ab) because she knows two equal ways to represent the area
of the shaded region. Which best describes the next steps Kira should take to complete her
proof?

Answers

Answer:

B. Simplify both sides of the equation to get [tex]a^2 + 2ab + b^2 - c^2 = 2ab[/tex]; then subtract 2ab and add [tex]c^2[/tex] to both sides of the equation

Step-by-step explanation:

Given

[tex](a + b)^2 - c^2 = 4(\frac{1}{2}ab)[/tex]

Required

Describe the next steps to

First, we open all brackets

[tex](a + b)^2 - c^2 = 4(\frac{1}{2}ab)[/tex]

[tex](a + b)(a + b) - c^2 = 4(\frac{1}{2}ab)[/tex]

[tex]a^2 + 2ab + b^2 - c^2 = 4 * (\frac{1}{2}ab)[/tex]

[tex]a^2 + 2ab + b^2 - c^2 = 2ab[/tex]

At this point, options A and C are incorrect because they didn't present the right result of the expression.

So, we have options B and D to consider

The next step is to subtract 2ab from both sides

[tex]a^2 + 2ab + b^2 - c^2 - 2ab = 2ab - 2ab[/tex]

Collect like terms

[tex]a^2 + b^2 - c^2 +2ab - 2ab = 2ab - 2ab[/tex]

[tex]a^2 + b^2 - c^2 = 0[/tex]

Lastly, to prove the Pythagoras theorem, the equation has to be in form of[tex]a^2 + b^2 = c^2[/tex]; meaning the [tex]c^2[/tex] is added to both sides; See below

[tex]a^2 + b^2 - c^2 = 0[/tex]

Add [tex]c^2[/tex] to both sides

[tex]a^2 + b^2 - c^2 + c^2= 0 + c^2[/tex]

[tex]a^2 + b^2 = c^2[/tex]

At this point, only option B completes Kira's proof

Answer:

It’s B

Step-by-step explanation:

I did the test

think: 1 cartoon = 1

Answers

Answer:

1 cartoon = 1 dance

Step-by-step explanation:

Not sure what the question asks for?

Answer:

SpongeBob

Step-by-step explanation:

Is that what you wanted?

What is the value of x, tanx=7 to the nearest hundredth?

a. 54.94 degrees
b. 56.94 degrees
c. 81.87 degrees
d. 85.94 degrees

Answers

the answer is C. 81.87

What is the slope of a line that is parallel to the line shown?

Question and options in images below.

Answers

Answer: m= 2/3

Step-by-step explanation:

4/6 simplify into 2/3

Write a linear equation from a slope and a point

Answers

Slope=4/2 point=(1,2)
2=4/2(1)+b
b=0
y=2x

1. A three-dimensional figure that has one vertex and one circular base is known as a:

Answers

Answer:

cone

Step-by-step explanation:

i need your help please asap

Answers

Step-by-step explanation:

First we will calculate the total amount spent on each website so

Website A = 49.95 + 4.39 = 54.34

Website B = 47.68 + 6.95 = 54. 63

So website A is cheaper by €0.29

Website A is cheaper by .29

While shopping at a clearance sale, Samantha finds a $60.00 dress on sale for 25% off. Samantha also has a 50% off coupon
Which statement correctly summarizes her savings?
Samantha will save $45.00 because the two sales will combine for 75% off the original cost.
Samantha will save $37.50 because she must first find the 25% sale price before taking the extra 50% reduction
Samantha will save $22.50 because she must first find the 25% sale price before taking the extra 50% reduction
Samantha will save $15.00 because the two sales will combine for 75% off the original cost

PLEASE HELP!!!!

Answers

Answer:

Samantha will save 45 dollars because the two sales will combine for 75 percent off the orignial cost.

Step-by-step explanation:

50 + 15 equals 75

75 percent off of 60 equals 15 dollars

60-15 equals 45 dollars so she saved 45 dollars.

Answer:

Samantha will save 45 dollars because the two sales will combine for 75 percent off the orignial cost.

Step-by-step explanation:

50 + 15 equals 75

75 percent off of 60 equals 15 dollars

60-15 equals 45 dollars so she saved 45 dollars.

Step-by-step explanation:

What is the IQR (interquartile range) for the following data? 7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

Answers

Q1= 5 Q2= 9 Q3= 11.5

Q3 - Q1 = IQR

11.5 - 5 = 6.5

The IQR is 6.5

The IQR (interquartile range) is mathematically given as

IQR=9

What is the IQR (interquartile range)?

Question Parameters:

Sample data 7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

Sample size13

Generally, the equation for the IQR (interquartile range) is mathematically given as

IQR=Q3-Q1

Therefore

IQR=37-28

IQR=9

In conclusion, the IQR (interquartile range) is

IQR=9

Answers

Answer:

Stephanie saved

Step-by-step explanation:

x+4x=15600

5x=15600

divide by 5 on both sides

you get 3120

since stephanie got 4 times more, you multiply 3120*4 and get 12480

therefore, Alejandro saved 3120

: )

A manager samples the receipts of every fifth person who goes through the line. Out of 50 people, 4 had a mispriced item. If 1,600 people go to this store each day, how many people would you expect to have a mispriced item?

Answers

Answer:

128

Step-by-step explanation:

There are 32 50's in 1600.

So 32x4=128

Solve for m.

-7 + 4m + 10 = 15 -2m

Answers

Answer:

M=2

Step-by-step explanation:

m=2 Make sure to move the terms, then collect the like terms, then subtract, then divide both sides by 6

Answer:

m = 2.

Step-by-step explanation:

-7 + 4m + 10 = 15 - 2m

4m + 2m = 15 + 7 - 10

6m = 12

m = 2.

Which could be the area of a face of the rectangular prism?

A rectangular prism with a length of 3 meters, width of 4 meters, and height of 2 meters.

5 m2
6 m2
7 m2
9 m2

Answers

Answer:

[tex]6m^{2}[/tex]

Step-by-step explanation:

well we are looking for a face of the rectangular prism.

the front face of the rectangular prism is length times height

which is 3 times 2 = [tex]6^{2}[/tex]

if we did any other face, like the side which is width times height ( 8 meters) it is not one of the answers.

so the only face that can be answers is length times height.

therefore the answer is

6m^2

i rly hope this helps!! :)

Answer:

the answer is B .

Step-by-step explanation:

which value makes the equation
3x - 6 = 36 true?
a) 10
b)12
c)14
d)16

Answers

Answer:

C) 14

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 6 to both sides:

3x - 6 (+6) = 36 (+6)

3x = 36 + 6

3x = 42

Next, divide 3 from both sides:

(3x)/3 = (42)/3

x = 42/3

x = 14

c) 14 is your answer.

Please help!!! i attached the problem.

Answers

Answer:

y>7.5

line under inequality sign.

Step-by-step explanation:

Please help it’s timed

Answers

Answer:

y=45

x=90

Step-by-step explanation:

x is a right angle, y is vertical from 45 degrees making it congruent to it.

Answer:

C: x=90 y=45

Step-by-step explanation:

The place where x is is obviously a right angle therefore, it is 90. Then here is a diagonal line cutting through the 90 degrees in half. 90/2=45.

Starting the first week of January, Mari puts $1.50 in her coin bank every week. How much money will she have at the end of the year?
A.
$18.00
B.
$63.00
C.
$78.00
D.
$72.00

BRAINLIEST ANYTHING!!

Answers

Answer:

Step-by-step explanation:

52 weeks of the year * 1.5

Answer:

The answer is C $78.00 because 52 times 1.50 equals 78 so if you couldn't the amount of weeks from january to december 31 it equals 52.

Step-by-step explanation:52 times 1.50 =78

Solve for x: 3x − 2 > 5x + 10.

Answers

Answer: hopefully this is what you need

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality form:

X < -6

Interval Notation:

(-♾, -6)

1. A space figure with two parallel and congruent bases can be any of these except a
A cone
B prism
c cylinder
Dcube

Answers

Answer:

C. cylinder

Step-by-step explanation:

i hope this help

A spec figure with two parallel and congruent bases can be c

HELP ASAP FIRST CORRECT GETS BRAINLIEST

Answers

Answer:

Right

Step-by-step explanation:

Answer: the first one is x less than 468 and the second one is and open circle at 468 and the third one is go left

Step-by-step explanation:

it would be a open circle if it wasnt a line under it and it would move the oppisite which is the left

WILL MARK BRAINLIEST! A bag has 4 blue marbles, 6 green marble and 3 red marbles in it. What is the ratio proportion of pulling a red or green marble from the bag ? *

Answers

Answer:

9:13

Step-by-step explanation:

sandra cut her sandwich into 3 equal parts. she ate 1 part for lunch. what fraction of the sandwich did sandra eat for lunch?

Answers

Sandra ate One-Third (1/3) of her sandwich for lunch.

Please mark me Brainliest!! You don’t have to though!!

What are the square roots of 64144?

−412 and 412

−3272 and 3272

−812 and 812

−49 and 49

Answers

Answer:

-812 and 812

Step-by-step explanation:

What is the correct answer..

Answers

Answer:

64 feet

Step-by-step explanation:

To find the height of the kite we use sin trigonometric ratio.

Let the height of the kite from the ground be x feet.

[tex] \therefore \: \sin 40 \degree = \frac{x}{100} \\ \\ \therefore \: 0.6427876097= \frac{x}{100} \\ \\ \therefore \: 0.6427876097 \times 100= x \\ \\ \therefore \:x = 64.29 \\ \\ \therefore \:x = 64 \: feet[/tex]

Find the difference. Write your answer in standard form.
(5x3−3x+6)−(2x2−4x+8)

The difference is _______

Answers

Answer: 5x^3 + x-6

Step-by-step explanation:

The value of x 3y, for x = -2 and y = 3, is -24. True False

Answers

Answer:

true

Step-by-step explanation:

x^3 y when x = -2 and y = 3

(-2)^3 * 3

-8 *3

-24

This is true

Which best describes the y coordinate of a point

Answers

Answer:

The vertical value in a pair of coordinates. How far up or down the point is. The Y Coordinate is always written second in an ordered pair of coordinates (x,y) such as (12,5). In this example, the value "5" is the Y Coordinate. Also called "Ordinate"

Step-by-step explanation:

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