Mathematics Middle School

A group of 8 friends played a round of miniature golf. The mean of the final scores for the first 6 friends to finish the course is exactly 54. The mean of the final scores for all 8 friends is exactly 51. Which of the following are the possible final scores of the last 2 friends to finish the course?
A. 51 and 51
B. 48 and 48
C. 42 and 54
D. 41 and 43

Plz help i need to finish this todayyyy

Answers

Answer 1

Answer:

B

Step-by-step explanation:

      I think

Answer 2

Answer:

D. 41 and 43

Step-by-step explanation:

To find it, 54 times 6 plus the two numbers then divided by 8 has to equal 51. let a and b be the two numbers

[(54*6) + a + b]8 = 51

(324 + a + b)/8 = 51

324/8 + (a + b)/8 = 51

40.5 + (a + b)/8 = 51

(a + b)/8 = 10.5

a + b = 84

The mean if a and b are 42, what two numbers here have a mean of 42? 41 and 43, 41 + 43 = 84, 84/2 = 42

Related Questions

Free brainliest if correct

Answers

Answer:

the answer is c

Step-by-step explanation:

I agree I’m pretty sure the answer would be C

Can you help me and see if these are valid conclusions? 7th grade

Answers

Answer:

jsbeuebaujwhwiwhwu

Step-by-step explanation:

ebsibwiajei2hie

A city park in the shape of a rectangle measures 90 yards by 120 yards. A rectangular playground inside the park measures 18 yards by 24
yards. What is the area of the city park around the playground?

Answers

Answer:

wouldn't the answer be 10800 yards

Step-by-step explanation:

because the formula of the area of a rectangle is l x w. so 90 x 120 is 10800

I think it’s 10800 yards because 90 x 120 is 10800 but I’m not sure tho

Erica, James, Stella, and Kim all did an experiment involving an electrically charged object. Who did repeated trials of his or her experiment?

Answers

The answer is D (Stella)

Answer:

D, (Stella)

Step-by-step explanation:

I did the exam and option D was correct! :D

Which is the solution set for the following inequality

A + 2 1/2 <6

Answers

Answer:

Step-by-step explanation:

A can be anything more than 3 1/2

Hope that helps! :)

-Aphrodite

Help! please help me quick

Answers

Answer:

2/9

Step-by-step explanation:

pretty sure it’s 2/9

Find the annual interest rate.

I = $24, P = $400, t = 2 years

The annual interest rate is _% ?

Answers

Answer:rate = 24*100/(400*2) = 3%

Step-by-step explanation:

If we changed the 3 to a 0 in the equation, what would happen to the graph?

Answers

Answer:

The graph will be three units lower

Step-by-step explanation:

The graph will be three units lower

The position of the graph will shift 3 units lower on the y axis.

If we changed the 3 to 0

What is the equation?

Equation, is  values of two expression that are equal.

now,
y = -.14x
y=-0.14x passes through origin as shown in the graph attached below.

Learn more about equation here:
https://brainly.com/question/10413253

#SPJ2

1. Two of the angles of a triangle measure 20° and 140°. Classify the triangle.
A. Scalene
B. Isosceles
C. Equilateral

Answers

Answer:

B

Step-by-step explanation:

if two sides are equal but one side is different it is called an isosceles triangle.

Help me please..??????

Answers

I can’t really see it

Answer:

C is correct :)

Step-by-step explanation:

Help me please with this math question! giving brainliest to the correct answer

Answers

Answer:

Step-by-step explanation:

Answer: 1125 cm (squared)

To find the answer use this formula:
1/2*base*height


This should help you, all u have to do is plug in the numbers.

Mark me the brainiest if I helped you!!

Help me please I’ll give Brainlest

Answers

i’d say random number generator for this one. i hope this works !
Tbh I would use a dice but that’s just me

Figure AA is a scale image of figure BB
Figure A maps to figure B with a scale factor of 1 1/2

Answers

Answer: x=3

Step-by-step explanation:

We know that the triangle got smaller. When you dilate by a scale factor of something, you multiply to make a number bigger or smaller. So x÷1.5= 2

x= 2x1.5

x= 3

HELP!!! PLEAAAAAAAAAAAAAAAAAAAASE

Answers

The first answer in the choices
The answer is c because it if you distribute the 3 into 10 you get 30 and distribute the 3 to 5 your 15

help me with this please

Answers

Answer:

you have to add all of them first

Step-by-step explanation:

You have to add all of them first

Plz help!!!!!!!!!!!!!!! 100 points! any links or wrong answers will be flaged
Part A: The Sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the Sun produce in 1.55 ⋅ 107 seconds? Express your answer in scientific notation and show your work. (5 points)

Part B: Which is the more reasonable measurement of the distance between the tracks on a CD:
1.6 ⋅ 10−3 mm or 1.6 ⋅ 103 mm? Justify your answer. (5 points)

Answers

Answer:

Part A: 431070.9 ergs

Part B: 1.6 x 103mm

Step-by-step explanation

PLS HELP ME!
Mr. Henry has a basket full of fruit. He does not
know how many pieces of fruit are in the basket
or the types of fruit. Each of the 20 students in
his class selects one piece of fruit from the basket

without looking, notes its fruit type, and then puts
it back in the basket. Based on the results shown
in the table, what can the students conclude
about the probability of selecting an apple?​

Answers

Answer:

[tex]\frac{5}{20}[/tex] OR [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Simply put, the total amount of fruits in the basket is 20. Since there are only 5 apples, this makes you only have a 5/20 chance of picking an apple. If you simplify that ratio, you get 1/4.

Good Luck!!!!

it would have to be 5/20 or 1/4

How was purple triangle transformed into the orange triangle
shifted 1 unit right and then 5 units up
shifted 1 unit left and then 5 units up
shifted 1 unit right and then 5 units down
shifted 1 unit left and then 5 units down

Answers

1 unit right and 5 units up. :)

I'm not understanding this can you help me

Answers

Answer:

gawin mo pag isipan mo wag puro brainly

i’m not sure but i believe the answer is 1

I need help ASAPP!! includes brainliest

Answers

Answer:

80 gallons

Step-by-step explanation:

looking at t=0 the graph is at 80, unless there is more info I would say that the inital  value was 80 gallons.

Answer: It is 80

Step-by-step explanation: The initial value, or y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point at which the line crosses the y-axis.

Find the value of z: 1/2 Z=8

This is 6th grade math

Answers

Answer:

Step-by-step explanation:

4

The answer is 16

Multiply both sides by 2, the reciprocal of 1/2

z=8\times 2

Multiply 8 and 2 to get 16.

In the image, shape is similar to shape . Find the measure of side .

Answers

Start by dividing 16/12 and you will get 1.33333

Then use that and divide it by 14
14/1.3333= 10.5

Select the correct answer.

Which equation could be solved using this application of the quadratic formula?

x=-8±√8²-4(3)(-2) / 2(3)

Answer choices are:

A. -2x² − 8 = 10x − 3
B. 3x² − 8x − 10 = 4
C. 3x² + 8x − 10 = -8
D. -2x² + 8x − 3 = 4

Answers

Pretty sure it will be C

brainlist

Which formulas will you use to find the area of this irregular figure? Select all that apply.
A = one-half b h
A=b+h
A=bh
A=2bh
A=2(b+h)

Answers

Your answer would be A=2bh

Here, two formulas we will use to find the area of this irregular figure.

A = one-half b × h

A=b + h

What is the area of a right-angle triangle?

The area of a right-angle triangle is = one-half × base × height = one-half b h.

What is the area of a parallelogram?

The area of a parallelogram = base × height = b h.

We can easily divide this irregular figure into a right-angle triangle and a parallelogram.

Hence, A = one-half b × h and A=b + h; two formulas will be required to find the area of this irregular figure.

Learn more about the area of an irregular figure here: https://brainly.com/question/23449437

#Tag #SPJ2

I need help includes brainliest to the right answer

Answers

150
Explanation: if you look at the chart it is going down 300 every 2 Months now just divide that by 2 to get the amount of one month and you get 150, Thus each month you pay 150.
-150 is the answer bro

What is a function? Why is domain (input) and range (output) important when defining a function?

Answers

Answer:

A function is a relationship in mathematics where for each input, there is one and ONLY one output.

A scientist collected data on the flight of a beetle. The data was then used to create the graph below.

Based on the graph, what was the beetle's average flight speed?

Answers

Answer:

1 meter per second, or 1m/s

Step-by-step explanation:

The average speed would be the total distance over the total time, 5/5 = 1, so the average flight speed is 1 meter per second, 1m/s

Help please this is making me lose braincells- Giving brainliest

Answers

Answer:

d - costa - number of attendees

If budget is $99, then the equation is:

99 = a + 96a = 99 - 96a = 3

Maximum number of attendees is 3

PLSSS HELPPP THIS IS MY LAST QUESTIONS

Answers

Answer: C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

A cylinder is made up of two parallel congruent circles and a rectangle which base is the circumference of the circle.

"select the graph that does not represent 2 quantities in a proportional relationships" thx <3

Answers

Answer:
C
Reason:
It doesn’t pass through the orgin
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