Mathematics Middle School

Would the answer be 31 or 16?

Would The Answer Be 31 Or 16?

Answers

Answer 1

32/2= 16 games the first round

then you have 16 teams left

16/2 = 8 games the second round

8/2 =4 teams left

4/2 =2 games the 3rd round

 then you have 2 teams left, so 1 game in the fourth round

 so 16 +8 +4 +2 +1 = 31 games

Related Questions

Emma has 8 cookies and her friends ate 5 in all. How many is left for her

Answers

She had 8 but he ate 5 so: 8 minus 5: 8-5.
Subtract: 8-5=3
She has 3 cookies left ((and zero friends XD )) :)
ema had 8-5=3
so if she ate 5 your taking away

15 points!!!

What is the value of b? ​ 0.4 (3b + 10) = 19 ​

Enter your answer in the box.

Answers

The value of b = 12.5.

In order to get this answer, we must:
First, simplify both sides of the equation.
0.4(3b + 10) = 19
(0.4)(3b) + (0.4)(10) = 19 (Distribute)
1.2b + 4 = 19
Next, we must subtract 4 from both sides.
1.2b + 4 - 4 = 19 - 4
1.2b = 15
Last, we must divide both sides by 1.2.
1.2b/1.2 = 15/1.2
Answer: b = 12.5

I hope this helps! :>

0.4(3b +10) = 19

1.2b + 4 = 19

1.2b = 15

b = 15 / 1.2

b = 12.5

you begin with $25 in a savings account and $50 in the checking account. Each week you deposit $5 into savings and $10 into checking. After how many weeks is the amount in checking twice the amount in savings? write and solve an equation.

Answers

Let [tex]s_n[/tex] represent the amount is saving account after n weeks, and  

let [tex]c_n[/tex] represent the amount is checking account after n weeks.


so:

[tex]s_0=25\\\\s_1=25+5\\\\s_2=25+5+5\\\\s_3=25+5+5+5\\\\.\\\\.s_n=25+5n[/tex]

and 

[tex]c_0=50\\\\c_1=50+10\\\\c_2=50+10+10\\\\c_3=50+10+10+10\\\\.\\\\.c_n=50+10n[/tex]


thus to find

"the amount in checking twice the amount in savings"
 
we solve the equation:

50+10x=2(25+5x),

50+10x=50+10x

this is true for any x (any number of weeks)


Answer: the amount in checking is twice the amount in savings ALWAYS



Cody made deposits of $45, $18, and $27 into his checking account. He then wrote checks for $21 and $93. Write an expression to show the change in Cody's account. Then simplify the expression. ((This is integers and rational numbers I really need help with this!))

Answers

C = 45 + 18 + 27 - 21 - 93 C = -24 Let's use the variable C to represent the change in the balance in Cody's checking account. The easiest way to make the expression is to simply apply the additions and subtractions directly. So let's start with C C "Cody made deposits of $45, $18, and $27 into his checking account." C = 45 + 18 + 27 "He then wrote checks for $21 and $93." C = 45 + 18 + 27 - 21 - 93 So the expression to represent the change to Cody's checking account is C = 45 + 18 + 27 - 21 - 93 Now to simplify it. All you need to do is combine terms together. How far you go is up to you. So let's do it. C = 45 + 18 + 27 - 21 - 93 I'll add together all the deposits. C = (45 + 18 + 27) - 21 - 93 C = 90 - 21 - 93 And I'll combine the checks. C = 90 - 114 So now you can tell at a glance that Cody deposited $90 and wrote checks for $114. But we can make it simpler and combine those as well. So C = -24 And this tells you that Cody's checking account balance is now $24 lower than it was before he started making deposits and writing checks.

Answer:

-24

Step-by-step explanation:

45 + 18 + 27 - 21 - 93 C = -24 Let's use the variable C to represent the change in the balance in Cody's checking account. The easiest way to make the expression is to simply apply the additions and subtractions directly. So let's start with C C "Cody made deposits of $45, $18, and $27 into his checking account." C = 45 + 18 + 27 "He then wrote checks for $21 and $93." C = 45 + 18 + 27 - 21 - 93 So the expression to represent the change to Cody's checking account is C = 45 + 18 + 27 - 21 - 93 Now to simplify it. All you need to do is combine terms together. How far you go is up to you. So let's do it. C = 45 + 18 + 27 - 21 - 93 I'll add together all the deposits. C = (45 + 18 + 27) - 21 - 93 C = 90 - 21 - 93 And I'll combine the checks. C = 90 - 114 So now you can tell at a glance that Cody deposited $90 and wrote checks for $114. But we can make it simpler and combine those as well. So C = -24 And this tells you that Cody's checking account balance is now $24 lower than it was before he started making deposits and writing checks.

to make a greeting card Bryce use 1/8 sheet of red paper 3/8 sheet of green paper and 7/8 sheet of white paper how many sheets of paper did Bryce use?

Answers

He used 1.3 sheets of paper, or 1 and 3/8 of a sheet.
You add 1/8 to 3/8 to get 4/8, then you add 7/8 to get 11/8, as a mixed number that is 1 and 3/8 of paper

30 is 6 times greather than

Answers

30 is 6 times greater than 5

hope this helps

Can someone please help me with this math question?(asap:)

Answers

so i would make this into a proportion, 29/30= 150.80/x 
now we cross multiply, 29x= 4524, then we divide 156 is the price at store b. so the second portion we do 156- 150.80= 5.20, we save $5.20 

:)

Equation with 6 operations?

Needs:
( ) +x➗– exponents

Answers

Alright, so using the distributive property, we can have
 2*(2+2)-2*(2+2)+2*(2^2)-2*(2^2)=0 by cancelling them out!

Suppose that a student has $150 in a band savings account at the start of the school year. Calculate the change in that savings account during the following year in case it: Growths from monthly deposit of $10 throughout the year

Answers

150 12 x 10=120+150= 270

An antelope Can run at a speed at 61 mph. What is the speed in yards per second? Round to the nearest hundredth.

Answers

61miles/hour times 5280ft/1 miles times 1yard/3feet times 1hour/60 minutes times 1 minute/60 seconds

what is 1995298 rounded to the nearest 10000

Answers

100,000.......Please mark brainliest....
Hello! 1,995,298 rounded to the nearest ten thousands would be 2 million. 9 is in the ten thousands digit, so to find whether we round or not, you have to look at the next number to the right. In this case, it’s a 5, and when the number is 5 or higher, you go up. When you go up, if simply rounds to 2 million, not only because of that, but the 9 digit is also in the hundred thousands place. The answer is 2,000,000.

Explain how to determine whether to move right or left on a number line when adding rational numbers

Answers

if you are adding a negative number you move to the left because that's where negative numbers are, and if its positive you move to the right for example:                                                                                                                                                          -4 + 7                                                                                                                          You moves 7 spots to the right since 7 is positive and the result is 3                                                                                                                              
4 + -5
You move to the left because 5 is negative and the result is -1


Need help here plz I don't know the how to do it thanks

Answers

ABD is the supplement of DBC, so it is equal to 180-130= 50 degrees.

If BE is the bisector, then it splits the angle in half evenly. 50/2=25 degrees for EBA and DBE each.

Final answer: 25 degrees
Becuase this is a straight angle, we know that the total amount of the degrees adds up to 180. We can write an equation to help solve for Angle  EBA
(180-130)/2=x
This is because we know angle DBC is 130, so when that 's subtracted from the original amount we are left with 50 degrees for angle ABD. Then, since EB goes through the middle of it, we know that Both ABE and EBD are equal to half of 50 which is 25.

Therefore, <EBA is equal to 25 degrees

solve for n n over 6 = 10 over 15

Answers

n/6 = 10/15

n = 10/15 * 6

n = 10*6 =60,  60/15 = 4

n = 4

The average length of a ladybug can range from 0.08 to 0.4 inch. Find two lengths that are within the given span.

Answers

0.078 inch and 0.067 inch

Two lengths within the average range for a ladybug could be 0.2 inches and 0.35 inches, both of which are between the minimum of 0.08 inches and the maximum of 0.4 inches.

The average length of a ladybug can range from 0.08 to 0.4 inch. To find two lengths that are within the given span, we can select any two numbers that fall between these two values. For instance:

The first length could be 0.2 inches, which is exactly in the middle of the range.The second length could be 0.35 inches, which is closer to the upper end of the range but still within the given span.

These lengths are examples of measurements that would fall within the typical size range of a ladybug.

Tom performed a total of 100 hours of community service. He served at three charities- Salvation Army, Red Cross and Rescue Missiom. The number of hours he served at the Red Cross was 19 hours more than at the Salvation Army. The number of hours he served at the Rescue Mission was 8 hours more than what he served at the Red Cross

Answers

Let x, y, z be the number of hours that Tom spent in service in Salvation Army, Red Cross, and Rescue Mission, respectively. From the statement above, the sum of the numbers should be 100. 
           x + y + z = 100

The equations that can be derived from the given and the assigned variables,
    y = x + 19
    z = y + 8

Expressing the times in terms of variable x,
   y = x + 19
   z = (x + 19) + 8 = x + 27

Solving for the value of x,
              x + (x + 19) + (x + 27) = 100

The value of x from the equation is 18. 

   y = 18 + 19 = 37
   z = 18 + 27 = 45

The number of hours he spent in three charities are 18, 37, and 45, respectively. 

Tom volunteered 18 hours at the Salvation Army, 37 hours at the Red Cross, and 45 hours at the Rescue Mission.

Let S represent the number of hours Tom served at the Salvation Army.

The number of hours at the Red Cross is 19 hours more than at the Salvation Army,
R = S + 19.The number of hours at the Rescue Mission is 8 hours more than what he served at the Red Cross,
M = R + 8.

Since the total number of hours Tom served is 100, we have,

S + R + M = 100

Substitute R and M with the expressions in terms of S:

S + (S + 19) + (S + 19 + 8) = 100

S + S + 19 + S + 27 = 100
3S + 46 = 100
3S = 54
S = 18

So, Tom served 18 hours at the Salvation Army. Now, we find the hours for the other two charities,

R = S + 19
= 18 + 19
= 37 hours at the Red Cross.M = R + 8
= 37 + 8
= 45 hours at the Rescue Mission.

In summary, Tom volunteered 18 hours at the Salvation Army, 37 hours at the Red Cross, and 45 hours at the Rescue Mission.

Complete question-
Tom performed a total of 100 hours of community service. He served at three charities – Salvation Army, Red Cross and Rescue Mission. The number of hours he served at the Red Cross was 19 hours more than at the Salvation Army. The number of hours he served at the Rescue Mission was 8 hours more than what he served at the Red Cross. Find the number of hours he volunteered at each charity.

PLEZ HELP I NEED HELP BADLYYY!!!
Homer and Bart plan to buy one computer for $499.00 strictly for gaming purposes games cost $49.99 each

PART A ... Define each variable and write an algebraic expression to describe how much they will spend before sales tax based on purchasing the computer and the number of games

PART B .... if they purchase one computer in five games how much do they spend before sales tax

PART C.... Homer and Bart have friends they want to purchase extra controllers each controller costs $24.99 use an algebraic expression to describe how much they spend in total before tax sales when they purchase one computer any number of games in any number of extra controllers

PART D ... what would be the total cost before sales tax if Homer and Bart purchase one computer for games and three extra controllers

Answers

Alright, we know that we have to spend 499 dollars on a computer as a base cost. Next, we have to buy 49.99 * x dollars worth of games (since games are 49.99 each), adding up to 499+49.99*x

Alright, so plugging 5 in for x, we get 499+49.99*5=744.95

Since one controller is 24.99, the money for buying a y amount of controllers would be 24.99*y., making the expression 499+49.99x+24.99y

Since in part D, there are no games, we plug these in to get 
499+49.99*0++24.99*3=573.97 dollars

A. [tex]\[ T = C + G \times P \][/tex]

B. they will spend $748.95 before sales tax.

C. [tex]\[ T = C + G \times P + K \times R \][/tex]  

D. The total cost before sales tax if Homer and Bart purchase one computer, five games, and three extra controllers would be $823.92.

PART A:

Let us define the variables:

- C: Cost of the computer ($499.00)

-  G : Number of games

-  P : Cost of one game ($49.99)

-  T : Total cost before sales tax

The algebraic expression to describe how much they will spend before sales tax based on purchasing the computer and the number of games is:

[tex]\[ T = C + G \times P \][/tex]

PART B:

If they purchase one computer and five games, we substitute G = 5  into the expression:

[tex]\[ T = 499 + 5 \times 49.99 \][/tex]

Now, we can calculate:

[tex]\[ T = 499 + 5 \times 49.99 \]\[ T = 499 + 249.95 \]\[ T = 748.95 \][/tex]

So, they will spend $748.95 before sales tax.

PART C:

Let's define an additional variable:

-  K : Number of extra controllers

-  R: Cost of one extra controller ($24.99)

The algebraic expression to describe how much they spend in total before sales tax when they purchase one computer, any number of games, and any number of extra controllers is:

[tex]\[ T = C + G \times P + K \times R \][/tex]

If they purchase one computer, five games, and three extra controllers, we substitute  G = 5  and  K = 3  into the expression:

[tex]\[ T = 499 + 5 \times 49.99 + 3 \times 24.99 \][/tex]

PART D:

Now, we can calculate:

[tex]\[ T = 499 + 5 \times 49.99 + 3 \times 24.99 \]\[ T = 499 + 249.95 + 74.97 \]\[ T = 499 + 324.92 \]\[ T = 823.92 \][/tex]

So, the total cost before sales tax if Homer and Bart purchase one computer, five games, and  three extra controllers would be $823.92.

the sum of two numbers is 90. if 20 is added to 3 times the smaller number, the result exceeds twice the larger by 50. find the number.

Answers

x+y=90
x=smaller number
y=larger number
2y+50= 20+3x (if 20 is added to 3 times the smaller number, the result exceeds twice the larger by 50. find the number.)
x=90-y (isolate x, so you can substitute)
2y+50=20+3(90-y) - (substitution)
2y+50=20+270-3y   ( distributive property)
5y+50=20+270 ( add 3y to both sides)
5y+50=290 ( added 20+270)
5y=240 ( subtract 50 from both sides)
y=48 ( divide both sides by 5)




After setting up a system of equations and solving them simultaneously, the two numbers are found to be 42 and 48.

To find the two numbers where the sum is 90 and where 20 added to three times the smaller number exceeds twice the larger number by 50, we can set up a system of equations. Let x be the smaller number and y be the larger number. The first equation based on the sum of the numbers will be:

x + y = 90

The second equation derived from the condition involving multiplication and addition will be:

3x + 20 = 2y + 50

Solving these two equations simultaneously, we start by rearranging the first equation to find y:

y = 90 - x

Next, we substitute this expression for y into the second equation:

3x + 20 = 2(90 - x) + 50

Simplify and solve for x:

3x + 20 = 180 - 2x + 50

5x = 210

x = 42

Now substitute x back into the equation for y:

y = 90 - 42

y = 48

The two numbers are 42 and 48.

pi is an irrational number. could pi = 22/7? why or why not?

Answers

No, it can't.

Irrational numbers are numbers that cannot be expressed as fractions.

So therefore, Pi cannot equal 22/7.
Pic cannot equal 22/7

Emily spent $55 from her savings on a new dress. Explain how to describe the change in Emily's savings balance in 2 different ways?

Answers

x - 55
-55 + x

Hope this helped!

Dave wants to make a stone walkway.the rectangular walkway is 4 feet wide and 12 feet long. Each 2 foot by 2 foot stone covers an area of 4 square feet . How many stone covers an area of 4 squares feet. How many stone will Dave need to make his walkway?

Answers

A=L×W 
1)Area of walkway
4×12=48

2)Area of stone
2×2=4

3)Divide
48÷4=12

12 stones

what rational number is equivalent to 6.121212121212?

Answers

Answer: 6.121212121212... = 202/33

Step-by-step explanation:

(612 - 6)/99 = 606/99 = 202/33 = 6.12121212121212... ∈ ℚ

In mathematics, a rational number is any number that can be expressed as the quotient or fraction of two integers, a numerator and a non-zero denominator.  

Since 6.121212121212... is a number whose digits are periodic (12) , we can express it as a fraction 202/33, therefore is a rational number ∈ℚ.

[tex]\textit{\textbf{Spymore}}[/tex]

What value of a makes the equation true? PLEASE HELP!!!

1.7a+0.3a=45

A. a=25

B. a=245

C. a=−115

D. a=135

Answers

1.7 a+ 0.3a =45
2a =45
a = 45/ 2
a= 27.5
???

Jasmin answered ¾ of the questions on her test correctly. If there were 48 questions on the test, how many did she get correct?

Question 8 options:

12


24


36


48

Answers

To find 3/4 of 48, multiply 48 by the decimal form of 3/4.

0.75*48=36

Final answer: 36

For his off-road bike, Jackson measures that he needs a brake cable 24 1/8 in. long. The parts catalog shows cables in decimal measurements. Which cable length should he order?

A. 24.125 in.

B. 24.275 in.

C. 24.375 in.

D. 24.775 in.

Answers

.125 * 8 = 1

A is the answer.

Answer:

its A

Step-by-step explanation:

Hey square piano has an area of 200 ft.² how long is each side of the piano to the nearest 0.05

Answers

since all sides of the square are equal, therefore area of square can be calculated using the following rule:
area of square = side^2
200 = (side length)^2
therefore,
the length of each side is sqrt(200) = 14.14 ft

3.014 rounded to the nearest tenth

Answers

3.01
or you can write
3.010
3.010 or 3.01.I'm learning this too! You're welcome for answering your quesiton:)

Why do triangles interior angles sum to 180°?

Answers

A squares interior able sun is 360 and half of a square is a triangle making the interior angle also 180 because half of 360 is 180. Idk how else to answer this because it’s just something that we all know

If m<2 = 110°, and the m<6 = 110°, What can you conclude about line r and line s?

Be sure to include what theorem allows you to made your conclusion.

Answers

line R and line S are parallel because of the corresponding angles theorm
Final answer:

Lines r and s are parallel based on the given measure of angles 2 and 6.

Explanation:

Based on the given information, if the measure of angle 2 is 110° and the measure of angle 6 is also 110°, then it can be concluded that lines r and s are parallel. This conclusion is based on the Alternate Interior Angles Theorem, which states that if a transversal intersects two parallel lines, then the alternate interior angles are congruent.

Learn more about Parallel lines here:

https://brainly.com/question/29762825

#SPJ2

which is greater √10 or 3.2

Answers

If you find the square root of 10, you can see it is 3.16. So, 3.2 is greater than the square root of 10.
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