Mathematics Middle School

Four friends are told that the average (mean) of their grades for their favorite class is 83.75%.



Kevin got 94%, Elizabeth got 78%, and Katherine got 83%.

Tyler's grade was not revealed. What's Tylers grade?

Answers

Answer 1

Answer:

Tyler got 80%.

Step-by-step explanation:

Represent Tyler's average by t.

Then .94 + .78 + .83 + t

         -------------------------- = 83.75%

                         4

Multiplying both sides by 4, we get  2.55 + t = 3.35

                                                                       

so that t = 3.35 - 2.55 = 0.80

Tyler got 80%.

Related Questions

plz help!!!!
Zoe is doing a survey to find the time her classmates spend playing video games. She asks the following question:

Which student spends the most time playing video games?

Part A: Describe the data you would expect her to collect from this question. (5 points)

Part B: Explain whether this is a statistical question. If this is not a statistical question, then modify the question to make it statistical. (5 points)

Answers

Answer:

she would need  4 hours maybe minutes

Step-by-step explanation:

The table and the graph each show a different relationship between the same two variables, x and y:

A table with two columns and 5 rows is shown. The column head for the left column is x, and the column head for the right column is y. The row entries in the table are 3,270 and 4,360 and 5,450 and 6,540. On the right of this table is a graph. The x-axis values are from 0 to 10 in increments of 2 for each grid line. The y-axis values on the graph are from 0 to 800 in increments of 160 for each grid line. A line passing through the ordered pairs 2, 160 and 4, 320 and 6, 480 and 8, 640 is drawn.

How much more would the value of y be in the table, than its value on the graph, when x = 11?

100
110
190
200

Answers

Answer:

110

Step-by-step explanation:

The answer is 110

If the function for the table is y=90x and the function for the graph is y=80x, then at x=11, the table would be at (11, 990) and the graph at (11, 880) meaning that the y value of the table would be 110 more than the y value of the graph.

HELPPPPPP IM SO CONFUSED

Answers

Answer:

First blank space: 4        Second blank space: 48              Third Blank Space: 48

Step-by-step explanation:

You have to multiply by 4 to get the denominator to 100. For the second blank space, it is asking what the numerator would be if the denominator were 100. It would be 48 because 12 x 4= 48. For the third blank space, 48/100 is 48%, so it would be 48.

Hope this helped!! :D

Answer:

Multiply the numerator and the denominator by 4 to get 48/100

You get 48%

Step-by-step explanation:

100 divided by 25 is 4 so that means you multiply the numerator by 4 and you get 48

To train for an upcoming marathon, Alvin runs 9 miles a day. If Alvin runs 9 miles every day for 30 days, how many total miles will he run?
im sorry for the spam but i have a 56 in math

Answers

Answer:

Step-by-step explanation:

if he runs 9 miles a day for 30 days thats 9x30 its pretty simple math all you have to do is multiply it should be 270 miles in total. np abt the spammage

it would be 270 miles

Only answer if you know the correct answer! Thanks! :)

Answers

It should be A, correct me if I'm wrong.

A box covers an area of 612
6
1
2
in2 when resting on its base. The volume of the box is 4512
45
1
2
in3.
Which of the following can you find from the given information? Select all that apply.

Answers

is the box cube or a parallelogram?

How many classifications shown contain organisms whose cells do not have nuclei?
A.1 B.3 C.2 or D.4

Answers

the answer to this is letter D
the answer is letter D

how many solution does 4x-5(2x+1)=6x+1 have

Answers

The number of solution the equation 4x - 5 (2x + 1) = 6x + 1 have is one.

What is a solution?

Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.

We have,

4x - 5 (2x + 1) = 6x + 1

4x - 10x - 5 = 6x + 1

-6x - 5 = 6x + 1

-5 - 1 = 6x + 6x

-6 = 12x

x = -6/12

x = -1/2

This means,

The equation has one solution.

Thus,

The equation has one solution.

Learn more about solutions of equations here:

https://brainly.com/question/545403

#SPJ1

When you are doing Rotations what is the easiest way to figure out which quadrant the figure should be in?

Answers

Answer:

the first one

Step-by-step explanation:

Answer:

Num 1

Step-by-step explanation:

Find the percent of change and round to the tenths if necessary.
41 euros to 85 euros.

Answers

Answer:

107.3%

Step-by-step explanation:

is this right hurryyyyyyyyyy please

Answers

Answer:

its wrong

Step-by-step explanation:

cause first of all i have no i dea second of all it looks to hard for me

it’s correct good job!!

Can anyone solve this?

Answers

1/2 × (23+15 ×11)

1/2 × (38 ×11)

1/2 × (23+15 ×11)

1/2×418

209ft²

Answer:

Option C)

Step-by-step explanation:

[tex]A=\frac{(23-15)(11)}{2} +(15)(11)[/tex]

[tex]A=44+165[/tex]

[tex]A=209ft^{2}[/tex]

Hope this helps

Ella's family took a road trip to Niagara Falls. Ella slept through the last 14% of the trip. If Ella fell asleep after they had travelled 602 miles, what was the total length of the trip?


Help please I’ll give brainliest after I finish my homework

Answers

Answer:The length of the trip is 780 mile

If your bill at a restaurant is 36.77 and you want to leave a 20% tip how much $ should you leave for your tip? Round your answer to the nearest cent (nearest HUNDREDTH) as a decimal!

Answers

Answer:

$7.35

Step-by-step explanation:

36.77 Times (x) 0.2 (percentage)

7.354

round

$7.35

EX: If it was on 20% off and an item was 36.77 then you would also mutliply it and then subtract 7.35 from 36.77

!!Remember the last part is an example if it was a discount!!

Which of the following is a pair of reciprocals?

A. (3, -3)
B.( 3 1/3, 3/10
C. (2^3, 3^2)
D.(0, 1)

Answers

Answer:

B, 3 1/3, 3/10

Step-by-step explanation:

two numbers are reciprocals if when you multiply them, the product is 1. when multiplying 3 1/3 by 3/10 the answer is 1, so you know this is the pair of reciprocals

hope this helps :)

Answer:

B

Step-by-step explanation:

Given a number n then its reciprocal is [tex]\frac{1}{n}[/tex]

A 3 and - 3 are opposites not reciprocals

B

3 [tex]\frac{1}{3}[/tex] = [tex]\frac{10}{3}[/tex] and [tex]\frac{1}{\frac{10}{3} }[/tex] = [tex]\frac{3}{10}[/tex]

Then

( 3 [tex]\frac{1}{3}[/tex] , [tex]\frac{3}{10}[/tex] ) ← are reciprocals

I bought some 60cent candy bars with c dollars. Then I ate n of them. How many candy bars do I have left?

Answers

Answer:

Not enough information.

Giving brainlest to whoever gives the right answer

Answers

Answer:

68in^2

Step-by-step explanation:

I divided the hexagon into 2 trapezoids

area of a trapezoid is t+b/2 h then

t-top or in this case 3

b-base or in this case 7

h-height or in this case 5

Need help ASAP need done before 3:30

Answers

Answer:

Angel two measures 60.4.

Step-by-step explanation

Since you are given one number, you would just have to subtract that from 90. (Easiest way to explain) Complementary angels are when the sum of both angels add up to 90°.

HELP ME IVE ASKED MANY TIMES :(
Two lines meet at a point that is also the vertex of an angle. Set up and solve an appropriate equation for x and y.

Answers

Answers

x = 90

y = 90-16=74

Step-by-step explanation:

Harry goes to Hogwarts School of Witchcraft and Wizardry. He can travel to school and back in
3 different ways: by the Hogwarts Express, a flying car, or the Knight Bus. He's decided to choose his methods of transportation to and from Hogwarts at random this year.
Which of these tables lists all the different ways Harry can get to Hogwarts and back? (Each row represents one outcome.)
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
Table A

(Choice B)
B
Table B
Table A:
To Hogwarts From Hogwarts
Knight Bus Knight Bus
Knight Bus Flying Car
Knight Bus Hogwarts Express
Flying Car Knight Bus
Flying Car Flying Car
Flying Car Hogwarts Express
Hogwarts Express Knight Bus
Hogwarts Express Flying Car
Hogwarts Express Hogwarts Express
Table B:
To Hogwarts From Hogwarts
Knight Bus Hogwarts Express
Flying Car Flying Car
Hogwarts Express Knight Bus
Knight Bus Knight Bus
Flying Car Hogwarts Express
Hogwarts Express Flying Car
Knight Bus Flying Car
Flying Car Knight Bus
Hogwarts Express Hogwarts Express

Answers

Answer:

Hi, I think that it's both. Hope this helps!

Step-by-step explanation:

marta is trying to decide between two jobs the first job will pay 35,340 and the second job will pay 36,120 before taxes which job will give Marta a higher net salary

Answers

Martha will get a higher salary with the first option because the more you make the more taxes are taken out of your salary
The first option $35,340

How can you use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3)?

Answers

Answer:

To use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3), you can use the following steps:

Rewrite the expression as [5.5+(-2.3)] +(-5.5) + 2.3.

Use the inverse property of addition to rewrite (-5.5) as 5.5, so the expression becomes [5.5+(-2.3)] +(5.5) + 2.3.

Use the inverse property of addition again to rewrite (-2.3) as 2.3, so the expression becomes [5.5+2.3] +(5.5) + 2.3.

Use the associative property of addition to rearrange the terms in the expression, so it becomes 5.5 + 2.3 + 5.5 + 2.3.

Use mental math to add the terms, which gives you a result of 15.8.

Therefore, the sum of [5.5+(-2.3)] +(-5.5 + 2.3) is 15.8.

Step-by-step explanation:

Answer:

15.8

I hope this help’s

. A spinner has 4 blue sections, 6 red sections
and 2 green sections. It is spun 24 times. For
numbers 2a – 2c, circle YES or NO to indicate
whether you would expect the spinner to land
on the given color the number of times stated.
2a. 8 times on blue YES or NO
2b. 18 times on red YES or NO
2c. 4 times on green YES or NO

Answers

Answer:

vkabzaubhx n xjbx

Step-by-step explanation:

what is (-7,5) across the x axis/reflected ?

Answers

Answer:

(-7, -5)

Step-by-step explanation:

When flipping over the x axis, the x stays the same while the y flips.

please help giving brainliest

Answers

Answer:

174

Step-by-step explanation:

give brainliest please

First find area of rectangle
Formula: l * w
Rectangle = 9 * 18 = 162 ft^2
Now find area of triangle: bh/2
Base = 18 - 6 - 6 = 6
Height = 4
(6 * 4)/2 = 24/2 = 12 ft^2
Add rectangle and triangle areas
162 ft^2 + 12 ft^2 = 174 ft^2
Solution: A. 174 ft^2

The five starters for the Seaside Shooters scored all the team’s points in the final basketball game of the season. Regina Reporter covered the game, but later her notes were accidentally destroyed. Fortunately she had recorded some interviews with the players, but when she played them back, only a few quotes seemed relevant to the scoring. She knew the final score was 95-94. Using the players’ observations, determine how many points each of them scored.

Kellene: Everybody’s totals were odd numbers.
Sara: Donna was fourth highest with 17 points. I scored 12 more points than Kellene.
Martina: Kellene and I scored a total of 30 points. I outscored her.
Heather: The last digit in everybody’s score was different.
Donna: Our highest scorer had 25 points.

Answers

Answer:

Kellene; 11 Sara; 23 Donna; 17 Martina; 19 Heather; 25

i NEED HELP AGAIN! PPLLLLLLLLEEEEEEEAAAAASSSSSSSSSSEEEEEEEE

Answers

The answer is 22 ur welcome

# 3 . 3 × 8 - ( 2 + 7 ) =

Answers

Step-by-step explanation:

3,3 x 8 - (2+7)=

26,4 - 9 = 17,4

Answer:

3 x 8+=24 2+7=9 9-24= -15

Step-by-step explanation:

Help ASAP i need the answer to this question plsss NO LINKS AND NO DOING IT JUST FOR THE POINTS Will give brainliest and just because i say don't do it just for the points doesn't mean i don't want you to do it i'm just saying that because i don't want random answers i want the right answers with work shown

4. The coordinates of the vertices of rectangle
ABCD are A(3, -2), B(3, 2), C(-3, 2), and
D(-3, -2).

a. Rectangle ABCD is rotated 90° about the
origin. What are the coordinates of the
vertices of rectangle A′B′C′D′?

b. What are the measures of the angles of
A′B′C′D′?

Answers

a. A'-- (2,3) B"-- (-2,3), C'-- (-2,-3), D'-- (2,-3) The formula for rotating a shape 90 degrees clockwise is (x,y) --> (-y,x).

b. 90 degrees because a rectangle has 90 degrees angles, and rotation doesn't change its shape, so it doesn't affect its angles.

EXPLANATION ON HOW TO FIND THIS!!!
What is the distance between (-4,1) and (0,2)?

Answers

You’re going to use this formula
The answer should be 4.1 and you can put it straight into a calculator, that’s easiest..
the answer would be 4.1 :) hope you do good on ur homework or test!
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