Mathematics Middle School

is 1.99 a rational number?

Answers

Answer 1

Yes, an irrational number cannot be counted, for example, pi is an irrational number.

Answer 2

Yes! 1.99 is a rational number

Related Questions

It took John 3 minutes to drive 18 laps. How many laps per minute did he run?

Answers

He ran 6 laps per minute. 18/3=6

Divide 18 by 3.
He ran 6 laps every minute.

A line contains the points (82,−96) and (87,−86) .

What is the slope of the line in simplified form?

Enter your answer in the box.

Answers

The slope is (change in y)/(change in x)= (y1-y2)/(x1-x2). It doesn't matter which values y1 and x1 are as long as they come from the same point, so we can have (-96-(-86))/(82-87)=-10/-5=2 as the slope

A line contains the points (82,−96) and (87,−86)

To find slope of a line we use formula

We are given with two points (x1,y1) and (x2,y2)

x1= 82, y1=-96, x2=87, y2=-86

plug in all the values in the formula

[tex]slope =\frac{ (y_2-y_1)}{x_2 - x_1}[/tex]

[tex]slope =\frac{ (-86-(-96))}{87-82}[/tex]

[tex]slope =\frac{ (10)}{5}=2[/tex]

Slope of the line = 2

What's the largest 3-digit base 14 integer?

Answers

Base 10 has the ten digits: {0, 1, 2, 3, 4, 5, 6,7, 8, 9}

Base 11 has the digits: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A} where A is treated as a single digit number

Base 12 has the digits {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B}

Base 13 has the digits: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C}

Base 14 has the digits: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D}

The digit D is the largest single digit of that last set. So the largest 3-digit base 14 integer is DDD which is the final answer

Note: It is similar to how 999 is the largest 3-digit base 10 integer

Marley Works how to beat store she has 4 and 3/4 pounds of beads she is making 1/8 lb packages how many packages will she be able to make

Answers

Change the 3/4 to 6/8. So then it will be 4 and 6/8 divided by 1/8= 38

Compute the requested average. Tim Worker receives the following income monthly from a second job. Jan. Feb. Mar. Apr. May June $200 $150 $250 $260 $285 $380 What is his average pay? (To the nearest hundredth.)
254.17255.37257.83259.85

Answers

To find the average, simply add up the values of the money that Tim earned and divide it by the six months that he worked. In this case, it would be (200 + 150 + 250 + 260 + 285 + 380) = (1525 / 6 = 254.166). This gives a closest value of choice (A), which is $254.17 per month.

If you add up all the monthly incomes, you get 1590. If you divide 1590 by 6 (the number of the months), then you get the answer: $265.

Edit: my bad, I read the question wrong, the answer is $254.17

What are the solutions of the equation c2-10c=0

Answers

c=0,10 would be the best choice

In this question, you are given an equation with one variable which is c. Then, it will be possible to find out the c value. Assuming the equation is c^2 - 10c = 0 then the calculation should be:

c^2 - 10c = 0
(c) (c - 10) = 0
c=0, c=10

Lucy purchased 2.7 lbs. of apples that were on sale for $2.50/lb. If she paid with a ten dollar bill, how much change did she receive?

Answers

2.50 * 2.7 = $6.75 total

10.00 - 6.75 = $3.25 change back

2.7*2.50=34.965. 34.97-10=24.97. $24.97 is the answer.

Write the Expression in standard form by expanding and combining like terms 4(8m-7n) +6(3n-4m)

Answers

standard for is x × 10 ^I
where,
I = indice
10 > x < 0
you cannot write this is standard form with putting in what they stand for. However you can simplify it -

4(8m-7n) +6(3n-4m)
32m - 28n + 18n - 24m
8m - 10n

but hey I am from England do what we call standard form might be different

114 ÷ 19
[tex]114 \div 19 =[/tex]

Answers

[tex]114 \div 19 = 6[/tex]
I hope my answer can be a help to you.

PLEASE HELP ME DUE TOMOROW please show the work thanks

Answers

did you understand how I did this?

If it is 4:40 now, what time was it 5 hours and 15 minutes ago?

Answers

the answer is that it would be 11:25

11:25 is the answer.

what is 7 x 1,829 in expanded form

Answers

The answer: 7 * 1,829 = " 12,803 " .
______________
The following is the explanation—"in expanded form" — (as per the specfic instructions— within this very question—as to how to get the answer:
____________________
Given: 7 * 1,829 = ? ; Find the solution; using "expanded form" :
____________
(7 * 9 = 63 ) ; +

(7 *20 = 140) ; +

(7 * 800 = 5,600) ; +
___________________________________________
(7 * 1,000 = 7,000) ;
___________________________________________
Now, add the the values together to solve the problem:
___________________________________________
→ 7 * 1,829 = 63 + 140 + 5,600 + 7,000 ;
     { = 203 + 5,600 + 7,000 } ;
       { = 5,803 + 7,000 }  ;
     = 12,803 ; which is the answer.
________________________________________________
Alternately, write out the steps as follows—using "expanded form":
________________________________________________
→ 7 * 1,829 = ?
________________________________________________
     →  7 * 1,829 = (7*9) + (7*20) + (7*800) + (1,000) ;
________________________________________________
→   7 * 1,829 = 63 + 140 + 5,600 + 1,000 ;
   { = 203 + 5,600 + 7,000 } ;
      { = 5,803 + 7,000 } ;
     = 12,803 ; which is the answer.
____
→ {Now, is our obtained answer: "12,803" ; the "correct answer"—to the problem: " 7 * 1,829 " ;} ??

→ Let us check:   {Note: " 7 * 1,829 " ; is the same as: ↔ " 1,829 * 7 " .}.

→ Using a calculator, does: "7 * 1829 = ? 12,803" ?? ; Yes! ;
→  &, for that matter; does: " 1829 * 7 =? 12,803" ?? ; Yes! .
_______
Furthermore, let us check, using the "traditional format" ;
→  Does: "1,829 * 7 =? 12,803 ?? " ;
________
{NB: We are multiplying 2 (TWO) numbers together; & 1 (ONE) of these 2 [TWO] numbers is a "1-digit" ["single-digit"] number; & the "OTHER" multiplicand is a "multiple-digit" [specifically, a"4-digit"] number.}.
______
NB: Yes; using a calculator is sufficient. Below, I simply provide an alternate method to confirm whether our "obtained value" is correct.
_____
  → Does: "7 * 1,289 = ? 12,803" ?? ;
→  Using the "traditional method"; let us check; as follows:
_____
₅ ₂ ₆
   → 1, 829
*    7
12 8 03 ;
_____
So; does: "12,803 =? 12,803" ?? ; YES!
  → This "traditional method" shows that: "7 * 1,829" ;  does, in fact, equal: "12,803".
_____
{NB: Explanation of the steps used in solving the aforementioned problem using the "traditional method"—just for clarification and confirmation} :
_____
→Start with: "7*9= 63" ; Write down the "3" & 'carry over' the "6" ; {Note the small-sized digit, "6"; written on top of the "2"; {commonly done—to keep track);

→Then; "7*2 = 14" ; then add the "small digit 6"; to the "14" ; →"14+6 =20" ;
Write down the "0" ; & 'carry over' the "2" ; {Note the "small-sized digit, "2"; written over the "8"; (commonly done—to keep track);

→ Then; "7*8 = 56" ; then add the "small digit 2"; to the "56"; → "56+2 = 58" ; Write down the "8" ; & 'carry over' the "5" ; {Note the "small-sized digit", "5" ; written over the "1" ; (commonly done—to keep track);

→Then; "7*1 = 7" ; then add the "small digit 5"; to the "7" ; → "7+5 = 12" ; Write down the "12" ; in its entirety—since are no digits left [in the multiplicand, "1,829"] ; to "carry over".
____
We get: "12,803" ; which =? "12,803" ?? ;→Yes!
____
I hope my explanation of how to solve "7 * 1,829" ; using the "expanded form" is helpful.  Also, i hope my explanation—albeit lengthy— of confirming that [our]  "correctly obtained value"—which is: "12,803"— is of some help.
__

When 605,000 is written in scientific notation, what will be the value of the exponent?

Answers

6.05 x 10^5 would be your answer.

I hope this helps!

Answer:1

10x2

Step-by-step explanation:

In Louisiana, the highest point of elevation is Driskill Mountain at 535 feet above sea level and the lowest point of elevation in New Orleans at 8 feet below sea level write an expression that represents the difference between these two measures that determine the interpret the difference

Answers

535 + 8

The elevation difference is a total of 543 feet between Driskill Mountain and New Orleans.

The expression that represents the difference between these two measures will be 535 - (-8) and the result is 543 feet.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

In Louisiana, the highest point of elevation is Driskill Mountain at 535 feet above sea level, and the lowest point of elevation in New Orleans at 8 feet below sea level.

The expression that represents the difference between these two measures will be given as,

⇒ 535 - (-8)

⇒ 535 + 8

⇒ 543 feet

The expression that represents the difference between these two measures will be 535 - (-8) and the result is 543 feet.

More about the Algebra link is given below.

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(c) Mrs. Dewalt looked at another hotel. She waited a week before she decided to book nights at that hotel, and now the prices have increased. The original price was $1195. The price for the same room and same number of nights is now $2075. What is the percent increase? Round to the nearest whole percent. Explain your answer

Answers

74%. The difference between the two prices is $880: $2075 - $1195 = $880. The ratio between the difference and the original price is roughly 0.736: $880 / $1195 = 0.736. Multiplying that quotient by 100 gives us the percent increase: 0.736 x 100 = 73.6%. Rounded to the nearest whole percent, it becomes 74%.

First, calculate the difference between the new price and the previous price.

D = $2075 - $1195

D = $880

Then, divide the difference by the original price and multiply the quotient by 100%.

P = ($880 / $1195) x 100%

P = 73.64%

Answer: 73.64%

If you estimate 342÷7 by using 350÷7 = 50 is 50 greater than or less than the exact answer? How did you decide? It’s 50 and overestimate or an under estimate

Answers

The answer will be greater then that because you are increasing by estimating so ur answer will be larger

Help:42÷7+1/5 order of operations:basic

Answers

42÷7+1/5
6 +1/5
7 1/5

seven and one fifth is the answer

42 divided by 8= 5.25+.20=5.45

What does the A stand for in the R.A.C.E. Strategy

Answers

The A means Answer.

lol

Your answer is answer if your doing this strategy
R= restate
A=answer
C=cite
E=explain
HOPE IT HELPS:)

which of the following will solve Ohm's law, V=IR for R

Answers

V=IR

to solve for R divide both sides by I

so you get R=V/I

-10-5x in standard form

Answers

-10 - 5x in standard form.

Standard form is when everything is in order.

Variables go before numerical values, so simply rearrange this expression.

-5x - 10

~Hope I helped!~

-5x-10 should be the answer

What are the zeros of the polynomial function f(x)=x^3-13x^2+40x?

Answers

Using a graphing calculator should help you. It's the easiest way

Answer:

X=0,5,8

Step-by-step explanation:

A seamstress needs to cut 15- inches pices of ribbons from a roll of ribbon that is 9 feet in length. What is the greatest number of 15-inches pieces the seamstress can cut from 5 of these rolls of ribbon?

Answers

the seamstress can cut 36, 15-inch pieces of ribbon from 5 rolls of 9 foot long ribbon.

Determine if the side lengths 6, 11, and 19 form a triangle. If it is a triangle, classify it by its sides.

Answers

It is not triangle because the one side of triangle should be smaller than the other two sides
Let's check
6+11=17
17<19
Or
11+19=31
9<31

Factor each of the following. Remember: It is the reverse of the distributive property and your first step is to find the greatest common factor of all terms.

Answers

To factor using the reverse of the distributive property, find what common factor the numbers have and what common factor the variables have.

10.

-8x - 16

8 is a factor of both -8 and 16.
The first term has x, but the second term does not, so there is no common variable. The only common factor is 8, or -8.

Factor out a -8:

-8x - 16 = -8(x + 2)

To see if the factorization is correct, multiply the answer using the distributive property. If you get the original expression, then the factorization is correct.

11.

w^2 - 4w

The first term only has a factor of 1. The second term has a 4. There is no common factor between 1 and 4 except for 1, so there is no number you can factor out. The first term has w^2. The second term has w. Both terms have a common factor of w. We can factor out w from both terms.

w^2 - 4w = w(w - 4)

12.

4s + 10rs

4 and 10 have a common factor of 2.
s and rs have a common factor of s.
2 times s is 2s, so the common factor is 2s.
We now factor out 2s

4s + 10rs = 2s(2 + 5r)

Determine if (-2, 10) is a solution of 5x+3y=20

Answers

plug in the -2 into "x", and plug in 10 into "y", because (x,y)

5(-2) + 3(10) = 20

-10 + 30 = 20

20 = 20

True

(-2,10) is a solution

hope this helps

To determine if (-2,10), all we have to do is plug in the appropriate values for x and y into the equation given to us, 5x + 3y = 20. When we use x = -2 and y = 10, we get 5(-2) + 3(10) = 20. When we simplify down, we get -10 + 30 = 20 => 20 = 20. Therefore, the coordinate point (-2, 10) is a solution of 5x + 3y = 20. Hope this helped and have a great day!

for f(x) =24-2x, find f(2) and find x such that f(x) =10

Answers

f(2) = 20
f(10)= 4

for each f(x) when it says find f of a number like f(2) just plug that number into the x that is in the regular equation.

example- f(x) = 24-2x find f(2) --- 24-2(2)= 20

The value of the function for x = 2 is 20 and the value of x for which function equal to 10 is 7

What is function?

A function is defined as a relation between a set of inputs having one output each, a function is a relationship between inputs where each input is related to exactly one output.

Given is a function, f(x) =24-2x, we need to find f(2) and value of x for which function's value is 10,

For f(2), put x = 2

f(2) = 24-2(2)

= 24-4

= 20

Therefore,

f(2) = 20

For f(x) =10

Set the function equal to 10,

24-2x = 10

-2x = -14

2x = 14

x = 7

Hence, the value of the function for x = 2 is 20 and the value of x for which function equal to 10 is 7

Learn more about function, click;

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is number 10 right? of it isnt plz tell me thanks!

Answers

No, the answer is 1.8 (I apologize for my previous answer)

No, it's 1.8 make sure first tho.

240 is 60% of what number?

Answers

Hey there!

400
240 / .6 = 400

Check: (60/100) * 400 = 240

Hope this helps!

Hi there! To find the answer to that question, we can write and solve a proportion. Set it up like this: 240/x = 60/100. This is because we're looking for the whole and we already know the part, which is 240. Cross multiply the values in order to get 24,000 = 60x. Now, divide each side by 60 to isolate the variable. When you do, you get x = 400. You can check this by dividing and then multiplying that quotient by 100. 240/400 is 0.6 and 0.6 * 100 is 60. That makes 60%. There. 240 is 60% of 400.

The vet says that we nice puppy will grow to be at least 27 inches tall. Lena’s puppy is currently 1 foot tall. How many more inches will the puppy grow? The puppy will grow a.) at least 2.) at most ? Inches

Answers

1 ft = 12 in.
The puppy is now 1 ft tall, so it is now 12 in. tall.
The puppy will grow to 27 in. tall

27 in. - 12 in. = 15 in.

The puppy will grow at least 15 in.

3Q + 11 + 8q less than 99

Answers

The solution of the inequality 3q + 11 + 8q < 99 is q < 8.

How to solve inequalities?

Inequalities are mathematical expressions involving the symbols >, <, ≥ and ≤. Therefore, the inequalities can be solved as follows:

3q + 11 + 8q < 99

combine like terms

3q + 11 + 8q < 99

3q + 8q + 11 < 99

11q + 11 < 99

subtract 11 from both sides of the inequalities

11q + 11 < 99

11q + 11 - 11 < 99 - 11

11q < 88

divide both sides of the inequalities by 11

11q / 11 < 88 / 11

q < 8

Therefore,

q < 88

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