Mathematics Middle School

what is an rational number

Answers

Answer 1
A rational number is a number that can be written into a fraction. pi, some square roots, e, etc., are irrational numbers(numbers that cannot be written into a fraction).
Answer 2
a rational number is when a number can be in the form of p/q. When p/q are integers and q is not equal to 0
hope this helps!

Related Questions

Valerie and Bret have a total of 24 dog show ribbons.bret has twice as many ribbons as Valerie how many ribbons does each have

Answers

Bret has 16 ribbons and Valery has 8

I am the largest 7-digit number you can write with the digits 3, 6, 9, 4, 0, 8, and 2

Answers

9,864,320

Hope this helps, let me know if there's anything else I can help you with :)
i believe it is 9,864,320

Simplify.     -(2/3)(-9y)(3/2)(8x)(1) A. 72xy   B. –72xy   C. 72   D. 0

Answers

Your answer would be 72xy
Hope this helps...........

13x = 32 + 5x this one is solving the equation and checking the solution

Answers

x = 4, You subtract the 5x to the other side then divide the 32 by 8 to get 4.
solution:
13x=32+5x
13x-5x=32
8x/8=32/8
x=4
check:
13(4)=32+5(4)
52=32+20
52=52 right!



Tara makes 30 cups of donut topping by mixing sugar and cinnamon. The ratio of sugar to cinnamon is shown in the tape diagram.

Answers

18 What i did was i divided 5 into 30 which equals 6 then i added 6+6+6=18 that should be your anwser

Answer: 18 cups.


Step-by-step explanation:

From the given picture we can see

The ration of sugar to cinnamon in the donuts topping =[tex]\frac{\text{no. of blue box }}{\text{no. of green box}}=\frac{3}{2}=3:2[/tex]

Thus, the number of sugar cups to make 1 donuts topping=[tex]\frac{3}{3+2}=\frac{3}{5}[/tex]

The number of sugar cups to make 30 cups of donuts toppings[tex]\frac{3}{5}\times30[/tex]

[tex]=3\times6\\=18\ cups[/tex]

The number of cups required to make 30 cups of donuts toppings=18 cups



Which function represents the graph of y=10(4)x ?



f

g

h

j

Answers

g would be the correct answer

How can I solve this?
f(x) =
[tex] {10}^{x} [/tex]
Solve,
[tex] {f}^{ - 1} (1)[/tex]

.



Answers

Here you are
Merry Christmas

What is the solution to this equation? 3(d+2)−12=d−2 A)d = 2 B)d = 4 C)d = 8 D)d = 10

Answers

The answer s a)d=2.

Answer: d = 2

Step-by-step explanation:

3(d+2)−12=d−2

Write two ratios that are equivalent to 5/7

Answers

Ratios equivalent to 5:7

10:14

20:28

30:42

hope this helps :D
25/40 and 10/14 are equivalents to 5/7.

The sum of three integers is 74. The first integer is twice the second and the third is six more than the second. What are the three integers

Answers

let thw second integer be x
then the first = 2x
and the third integer is = 6+x
their sum = 74
x+2x+6+x = 74
4x +6 = 74
4x = 74-6 =68
x =68÷4
x = 17
then the first integer is 2×17 = 34
the third integer is 17+6 = 23

the integers are 17 , 23 and 34

The baker used 3 1/2 cups of pastry flour for every 1 1/2 cups of wheat flour. How many pastry flour is used per cup of west flour?

Answers

3 because there’s 3 1/2 cups for 1 1/2
Final answer:

The baker used 2 1/3 cups of pastry flour per cup of wheat flour.

Explanation:

To find out how many cups of pastry flour are used per cup of wheat flour, we can set up a proportion based on the given information:



3 1/2 cups pastry flour / 1 1/2 cups wheat flour = x cups pastry flour / 1 cup wheat flour



We can solve for x by cross-multiplying:



(3 1/2)(1) = (1 1/2)(x)



7/2 = 3/2x



Now we can solve for x by dividing both sides of the equation by 3/2:



(7/2) ÷ (3/2) = x



7 ÷ 3 = x



x = 2 1/3



Therefore, the baker used 2 1/3 cups of pastry flour per cup of wheat flour.

Learn more about Unit Conversion here:

https://brainly.com/question/19420601

#SPJ12

Find the measure of the numbered angles

Answers

Well...
Some information was cut off but I'll assume that its a parallelogram.
If it's a parallelogram, then angles 1 and 3 are equal and angle 2 and the angle marked as 110 degrees are equal.
Next we know that angles 1 and 2 are supplementary(adds to 180) so angle 1 is 70 degrees.
Because angle 3 is equal to angle 1, angle 3 is also 70 degrees.
Hope this helps :)

Find the possible values of n in the inequality -3n<81

A. n<27

B. n>-27

C. n=-27

D. n=27

Answers

-3n < 81...divide both sides by -3, and change the inequality sign
n > -81/3
n > - 27 <==

** in an inequality, if u divide/multiply by a negative number, u have to change the inequality sign

shari’s class is making team pennants for an upcoming field day.they cut the pennants out of a large sheet of paper in the pattern shown below. the area of the whole pattern is 1600 cm2. they need to know the length of the pennant base how long is the base of each pennant

Answers

Answer:

10cm Base

Step-by-step explanation:

Actually the answer is 10 cm for the base.

First step is take 1600cm2 and divide it by 4 (or how many pendents you have) so it'll look like this

1600/4 =400cm2

Then you need to find the area of the Triangles.

Area of the Triangle=1/2xbase xheight

400=1/2xbx80

400=40xb

10=b

Answer: 10cm Base

Step-by-step explanation:

A lab technician is diving a cell that has a diameter of 4.32 x 10^-4 millimeters. Each of the new cells has a diameter measuring exactly one half of the diameter of the original cell . Which is the diameter of the new cell ? A. 2.16 x 5^-2 B. 2.16 x 10-2 C.2.16 x 5-4 D.2.16x 10^-4

Answers

It is very simple you will just multiply it by half
4.32 × 10^-4 /2
=2.16 × 10^-4

The answer is D.
Final answer:

The diameter of the new cell, which is exactly half the diameter of the original cell (4.32 x 10^-4 millimeters), is 2.16 x 10^-4 millimeters.

Explanation:

The lab technician is dividing a cell with an original diameter of 4.32 x 10^-4 millimeters. The new cells' diameter is stated to be exactly one half of the original diameter. Therefore, to find the diameter of the new cell, simply take half of the original cell's diameter. This can be accomplished by dividing the numerical value of the diameter by 2, which would be 4.32/2 = 2.16. The exponent remains the same because the size (magnitude) of cell diameter is only halved, not the order magnitude. So the diameter of the new cell is 2.16 x 10^-4 millimeters.

Learn more about Cell Division here:

https://brainly.com/question/29773280

#SPJ3

18 out of the 25 students are going on the field trip. What percent of the students are going on the field trip?


can you provide the math to please

Answers

Hello.
To find the percentage of how many students went on the field trip, we simply divide 18 by 25. 
18/25 = 0.72

Convert decimal into fraction.
0.72 = 72%

Thus, 18 out of 25 students = 72% of students who are going on the field trip.

You're welcome.

How do you solve this math problem-2(x+3y)=18

Answers

Greetings!

Solve for x.
[tex]-2(x+3y)=18[/tex]
Distribute the Parenthesis. How? Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
[tex](-2)*x+(-2)*3y=18[/tex]
[tex]-2x-6y=18[/tex]
Add 6y to both sides.
[tex](-2x-6y)+6y=(18)+6y[/tex]
[tex]-2x=18+6y[/tex]
Divide both sides by -2.
[tex](-2x)/-2=(18+6y)/-2[/tex]
The Answer Is:
[tex]x=-9-3y[/tex]
[tex]x=-3y-9[/tex]

Hope this helps.
-Benjamin

On a string of red and blue lights, the red lights blink everyb3 seconds, and the blue lights blink every 5 seconds. How many times will they blink at the same time in one minute?

Answers

when will they blink together?
what is the smallest number they both mutiply to
3*5=15
so every 15 seconds
so at 15, 30, 45, 60 seconds
so 4 times if you count the time exactly at 1 minute
Final answer:

The red and blue lights will blink at the same time 4 times in one minute.

Explanation:

To determine how many times the red and blue lights will blink at the same time in one minute, we need to find the time at which both the 3-second cycle of the red light and the 5-second cycle of the blue light coincide. This is equivalent to finding the least common multiple (LCM) of 3 and 5. The LCM of 3 and 5 is 15, which means they will blink at the same time every 15 seconds.

Since there are 60 seconds in a minute, we need to find how many times 15 seconds fit into 60 seconds. 60 ÷ 15 = 4. Therefore, the red and blue lights will blink at the same time 4 times in one minute.

Answer: The red and blue lights will blink at the same time 4 times in one minute.

Learn more about Blinking lights here:

https://brainly.com/question/21263043

#SPJ12

Walmart is advertising a sale where all Lego sets are 15% off. Mrs. Snyder decides to purchase a Lego set that originally cost $39. What will Mrs. Snyder pay for the Lego set on sale?

Answers

So this is super easy :) Simply turn 15% into a decimal 0.15
5.85 is how much money she doesn't have to pay. 
So she has to pay 33. 15
Well If you start with $39 you will need to turn your 15% into a decimal which is .15 Multiply that by your 39 and you get 5.85 that is your discount price so now subtract that from 39 to get 33.15

One tank is filling at a rate of 5/8 gallon per 7/10 hour. A second tank is filling at a rate of 5/9 gallon per 2/3 hour. Which tank is filling faster? Explain how you know.

Answers

First recognize that the unit rate we're finding is gallons per hour, or [tex]\frac{g}{h}[/tex].

rate for Tank 1 = x gallons per hour = a gallons / b hours

[tex]T_{1}=\frac{\frac{5}{8}}{\frac{7}{10}}\\\\T_{1}=\frac{5}{8}*\frac{10}{7}\\\\T_{1}=\frac{50}{56}\\\\\\Fill\ rate\ of\ Tank\ 1=\frac{25}{28}[/tex]


rate for Tank 2 = y gallons per hour = c gallons / d hours

[tex]T_{2}=\frac{\frac{5}{9}}{\frac{2}{3}}\\\\T_{2}=\frac{5}{9}*\frac{3}{2}\\\\T_{2}=\frac{15}{18}\\\\T_{2}=\frac{15}{18}\\\\\\Fill\ rate\ of\ Tank\ 2=\frac{5}{6}[/tex]

Compare and contrast the different battles that took place at: Ticonderoga, Necessity, William Henry, Quebec, Montreal, and Duquesne.

Answers

They all were in the French and Indian war

How do you solve this using the elimination method of systems of equations?

Answers

x-2y=14      | *-1
x+3y=9

-x+2y=-14  } +
x+3y=9
---------------
   5y=-14+9
   5y=-5
   y=-5/5
     y=-1

x+ 3*(-1)=9
x-3=9
x=9+3
x=12
Since you want to eliminate in the variable, eliminate x because it can be easily crossed out. To get rid of x simply subtract the two equations. So x-x is canceled and 2y- -3y=5y and 14-9=5 so 5y=5 is 1. Now plug 1 into y and you get x=6.
The answer is (6,1) Hope this helps!!!!!!

8 is 40 percent of what number

Answers

Answer:

20%

Step-by-step explanation: So 40 percent = 100 percent. If you divide 40 percent by 5 you get 8. 1/5 is equal to 20% and 8 is a fifth of 40. So the answer is 20%.

We have that the 8 is 40 percent of 20 and it  is mathematically given as

x=20

Arithmetic

Question Parameters:

8 is 40 percent of what number

Generally the equation for the statement  is mathematically given as

x*40%=8

Therefore

x*40%=8

x*0.4=8

x=20

For more information on Arithmetic visit

https://brainly.com/question/22568180

Can anyone explain this to me?

Answers

Yes, because of the Angle Angle Similarity Property.  Angle U in the larger triangle measures 55 degrees.  Angle X of the smaller triangle is unknown, but in the polygon formed by the smaller triangle inside the larger, X is equal to 125. Since both values of X form a straight line, they must add up to 180.  So subtract 125 from 180 and you get 55.  This would prove that at least one angle is equal, and then if you look at the top angles of the triangle, they both have Angle U, so they must also be equal.  The third choice is correct.

the product of 2 consecutive natural numbers is greater than their sum by 109. find the numbers

Answers

Let the 2 consecutive numbers be n and n+1. Then:
n(n+1)-109=n+n+1
n²+n-109-2n-1=0
n²-n-110=0
(n-11)(n+10)=0
n=11
n+1=12
☺☺☺☺

Write 2687 in expanded form

Answers

2000+600+80+7 is the answer
the answer is
2000+600+80+7

Kirk has 12 dollars less than jim if Jim spends half of his money and Kirk spends none then Kirk will have two dollars more than jim how much money did they both start with

Answers

kirk started with 16 and Jim started with 28 

0.64 divided by 4 in standard algorithm

Answers

Answer:

Quotient = 0.16, Remainder = 0    

Step-by-step explanation:

Standard algorithm of division is a step by step procedure to perform division.

In this question we have to divide 0.64 by 4, therefore, 0.64 is the dividend and 4 is the divisor.

Steps:

Zero times four is 0. Then we put decimal point in our quotient.

Continuing one times 4 is 4. We subtract 4 from 6 to have remaining value of 2. Then, we copy down 4. Thus, the remaining value now is 24.

Six times four is 24. Thus, the remaining value is zero.

Hence, we get the remainder of zero and quotient 0.16.

When 0.64 is divided by 4 using standard algorithm, we get 0.16.

What is Division?

Division in maths is the process of breaking a number up into equal parts, and finding out how many equal parts can be made.

Given is 0.64 divided by 4.

In order to divide 0.64 by 4, follow the given steps -

1 : 4 multiplied by 0 is equal to 0. Start writing the quotient as by writing 0 and decimal point after it.

2 : 4 multiplied by 1 is 4 and when 4 is subtracted from 6, we get 2. The quotient will now become 0.1 . Bring 4 down, next to 2.

3 : Now, 24 divided by 4 gives 6, this will leave remainder 0 and the final quotient will be 0.16

Therefore, 0.64 divided by 4 using standard algorithm, we get 0.16.

To solve more questions on Division by Standard Algorithm, visit the link below-

https://brainly.com/question/8436704

#SPJ2

the universal set is represented in a venn diagram by

Answers

What universal set? Can you please be more clear?
I believe the answer is a rectangle, but I'm not sure.

The heights of four boys measured 152.0 cm, 150.75 cm, 149.5 cm, and 149.25 cm. Bradley is the tallest, Calvin is taller than josh, but shorter than Mark. Josh is the shortest. What is Mark's height


Answers

So, Bradley is the tallest! He's 152.0 cm, then. Josh is the shortest, so he's 149.25 cm:
Bradley: 152.0 cm
???: 150.75 cm
???: 149.5 cm
Josh: 149.25 cm
Then, Calvin is taller than Josh, but he's shorter than Mark. There's only 2 spaces available left, so Calvin is 149.5 cm, and now there's only one slot left, and that means Mark is 150.75 cm.
So: 
Bradley: 152.0 cm
Mark: 150.75 cm
Calvin: 149.5 cm
Josh: 149.25 cm
Please rate brainliest!
Other Questions
Write an informal command in Spanish using the verb ser. Multiply 6/5 x 25/24 ?? 9 is 63% of what number Emotion has been defined as having three elements. please identify which choice below is not one of the three elements. Why did the importance of religion decline throughout the colonies from the 17th to the 18th century? The lowest stimulus intensity required for detection is the ________, and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the ________. The immigration quota laws passed in the 1920s: question 16 options: 1) set strict limits on immigration from mexico. 2) encouraged asians to immigrate to america. 3) rescinded the gentlemen's agreement accepted during theodore roosevelt's administration. 4) favored immigrants from northern and western europe. 5) favored immigrants from southern and eastern europe. 1 point) use the inner product f,g=10f(x)g(x)dx f,g=01f(x)g(x)dx in the vector space c0[0,1]c0[0,1] of continuous functions on the domain [0,1][0,1] to find f,gf,g, ff, gg, and the angle f,gf,g between f(x)f(x) and g(x)g(x) for f(x)=10x23 and g(x)=6x9. Which of the following is a poor ergonomic choice?A. Adjust your tasks or environment to fit youB. Omit unnecessary tasks and movementsC. Vary activities and processes to use different muscle groups throughout the dayD. Use manual lifting techniques Reddit why are younger people switching jobs so much Escoge la respuesta correcta.The city of Quito was first inhabited by _____.the Quitus peoplethe Mayan peoplethe Aztec peoplethe Incan people A 9cm wife cross section pipe has a height of 13cm . What is the volume of the pipe In the seventeenth century, physicians and other scientists did not routinely perform autopsies. Which statement best illustrates the cause and effect? The length of a rectangle is the square root of 100 times an unknown number, x. The width is one-half an unknown number, y, less three-halves x. If the area of the rectangle is 125 cm2, find an equation that would give the width of the rectangle given the length. When your blood glucose level drops, your __________ increases. psych? PLEASE HELPx 1 2 3 5 6 y 0 1 2 4 5 Are the paired points in a proportional relationship? Which of the following points lies on the graph of ( x , y ) (x,y) lies on the graph of 8 x + 2 y = 24 ? An airplane flew 2,400 miles in 4 hours if the plane flew the same numbers of miles each hour how many miles did it fly in one hour A plant cell placed in a solution with a lower (more negative) water potential will _____. Read the passage from elizabethan women.at the time, women were required to be utterly subservient to men, given limited education and career choices, and subjected to stringent rules of etiquette and dress. queen elizabeth herself is quoted as saying: "better beggar woman and single than queen and married." elizabeth remained single throughout her life because marrying would have meant giving up her autonomy as monarch. the fact that even the queen had to take such measures to protect her access to self-governance illustrates the harsh plight of upper-class women of the time.according to the passage, of all the areas of an elizabethan woman's life, the one that was most responsible for the woman's lack of independence was Steam Workshop Downloader