Mathematics High School

The average mark scores by 29 students in a science test was 56%. Jessica was sick, so she sat the

test later and scored 71%. Including Jessica's score, what was the new value of the mean mark?

Answers

Answer 1

Answer:

56.5%

[tex] \frac{29 \times 56 + 71}{30 \times 100} = 0.565 = 56.5\%[/tex]

Related Questions

Can someone help me plz!!

Answers

Answer:

MRT or TRM

Step-by-step explanation:

RT and MR meet at point R. Point R must be included in the final angle as well as the endpoints of RT and MR. The resulting angle is thus MRT, or TRM

I need help pleaseeeee
No links

Answers

Answer:

320

Step-by-step explanation:

2 times 64 plus 4 times 48 equals 320

These are two similar triangles
What is the measure of x?
24
12
X
4
x = [?]
=

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I believe the answer should be 18. Try

HELP PLEASE
-8b= 2d-2/h
solve for d

Answers

Answer:

[tex]{ \rm{ - 8b = 2d - \frac{2}{h} }} \\ \\ { \rm{ - 8b + \frac{2}{h} = 2d}} \\ \\ { \boxed{ \rm{d = - 4b + \frac{1}{h} }}}[/tex]

Please I need help the question is angle sum theorem

Answers

Answer:

x=80, y=55

Step-by-step explanation:

x is on a line so 180-100=80

x= 80

angles of a triangle are 180 so 180-45-80=55

y=55

PLS HELP WILL MARK BRAINLIEST, NO FAKE ANSWERS OR WILL BE REPORTED.

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is ~

A. [tex]-{x}^{2}+x+3[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

The solution is in attachment ~

what is the h.c.f of 18,54 and 72​

Answers

Answer:

18.......................

The population in Smalltown in 2010 was 45,230 people and is growing exponentially at a rate of 2%. What will the population be in 2030?

A) 67,209
B) 67,475
C) 81,928
D) 82,414

Answers

Answer:

Let P(t) = population t years after 2010

           = 45230e0.02t

Population in 2030 = P(20)

                           = 45230e0.4≈ 6747

Justify each step and simplify the equation.
19+56(1/56)

Answers

Answer:

20

Step-by-step explanation:

19 + 56(1/56)

= 19 + 56 x 1/56

= 19 + 1

= 20

What is the length of the segment

Answers

Answer:

9 units

Step-by-step explanation:

Nathan usually drinks 33 ounces of water per day. He read that he should drink 63 ounces of water per day. If he starts drinking 63 ounces, what is the percent increase? Round to the nearest percent. what is the increase in percent(not over 100)

Answers

Answer:

I think it’s 90% if u round up it should be 91%

Step-by-step explanation:

If it’s wrong I’m REALLY sorry

Answer:

47.619047619047

Step-by-step explanation:

63-33= 30

[tex] \frac{30}{63} \times 100 = 47.619047619047[/tex]

you are welcome

Brainiest?!?! Please help me I'm running out of time??​

Answers

Because if x is greater than y, then x-y wouldn’t be below 0 like it’s shown, so x must be less than y.

And if x is less than y, any negative y would mean x is negative as well since it’s always less than y. And as shown, x+y is positive so it’s impossible for y to be negative.

The set of all possible outputs for a function is its:

Answers

Answer:

the set of all possible outputs for a function is the range

Complete the proportional relationship table by filling in the blank sections. Dalia swims 2 pool laps every 3 minutes.tions. A runner runs 5.5 miles per hour.

Answers

Answer:

2/3

Step-by-step explanation:

Answer: 2/3

Step-by-step explanation:

i took the k12 test

sorry if its wrong but i think its right at least it was for me

In a walk-a-thon a sponsor will donate $20 and an additional $3 for each mile the participant walks. What is the rate of change in the situation? Fill in your answer in the boxes below.

Answers

Answer:

20 + 3x or +3 per mile

Step-by-step explanation:

Can someone help me please ?

Answers

Answer:

=

Step-by-step explanation:

1. The square root of 4 is 2 because [tex]2^2[/tex] = 4.

2. The cube root of 8 is 2 because [tex]2^3 = 2* 2 * 2[/tex] = 8.

3. 2 and 2 are equal.

Therefore, the correct symbol is =.

Where is the velocity negative?
E
B
A
G

Answers

Hello! The answer is

D-F

The V is negative when the velocity graph goes down. Hope this helps!

#HaveAnAmazingDay

[tex]GraceRosalia[/tex]

Complete the following products.

1. (x - y) (x² + xy + y²)
= (__) x² + (__) xy + (__) y²
= __ - x²y + x²y - xy² + __ - y³
= x³ - __​

Answers

1. (x - y) (x² + xy + y²)

= (X )x² + (X ) xy + (y) y²

= ( x^3)- x²y + x²y - xy² +(xy^2) - y³

= x³ -y^3

Here is your answer !

Plz mark me brainest

what is 5/100 written in decimal

Answers

The answer is 0.05 i hope this helped you !

Answer:

0.05

Step-by-step explanation:

Hope it helps:)

I need help with constat rate of change please​

Answers

It’s 40 that’s the constant change of rate

helppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

what do u need help for, I can help you

Answer:

well i have to know the unit rate in order to know the answer

Step-by-step explanation:

So, to quote Sonic the Hedgehog from the movie Sonic the Hedgehog:

expand and simplify (3x-1)(x-3)​

Answers

Following are simplifications to the given expression:

Given:

[tex]\bold{(3x-1)(x-3)}[/tex]

To find:

simplify=?

Solution:

[tex]\to \bold{(3x-1)(x-3)}\\\\\to \bold{(3x^2-9x-x+3)}\\\\\to \bold{(3x^2-10x+3)}\\\\[/tex]

Therefore, the final answer is "[tex]\bold{3x^2-10+3}[/tex]".

Learn more:

brainly.com/question/1661958

Choose the ordered pair for point L.

Please help!! If you can, thanks so much :))

Answers

Answer:

The answer to the question is (2,-3).

A stray dog ate 4 of your muffins. That was 2/9 of all of them! How many are left?

Answers

Answer:

14muffins are left. please give brainliest

Step-by-step explanation:

so first we need to figure out how many there are in total so if 4 muffins is 2/9 so every 2 muffins is 1/9 so we need 9x2 wich is 18 so there are 18 muffins in total but the stray dog ate 4 of them so 18-4 is 14 so the answer is 14muffins are left.

5. Calculate the area of the shaded region in the diagram if ABCD is a rectangle. 8 B 4 A 5 3 6 8 D 9 3 C​

Answers

Answer: 61 unit^2

Step-by-step explanation:

ABCD is a rectangle with dimensions 12 by 11, for a total area of 132 (square units). Although I could determine the lengths of the parallel lines of the interior trapezoid from the data supplied, I'm lazy and decided, instead, to subtract from the total rectangle area the areas of the four right triangles formed outside the shaded area. The area of each triangle is (1/2)b*h, and we are given those dimensions on the figure.

The four triangle areas:

TriD = 36

TriA = 6

TriB = 20

TriC = 9

Total area = 71 square units.

Subtract this from the rectangle's area: 132 - 71 = 61 units^2

This is the area of the shaded trapezoid.

Gabriella answered 72 questions correctly on her multiple choice history final and earned a grade of 36%. How many total questions were on the final exam?

Answers

Answer:

There were 200 Questions on the Final.

Step-by-step explanation:

Please help I will make you Brainliest if correct (you don't have to do number two if you don't want to)​

Answers

Answer:

120?

Step-by-step explanation:

Might be incorrect. -_-

Answer: question 1, all you had to do was divide the shpaes up by simply finding the missing numbers and separating the two shapes.

The rectangle has a area of  96

The square has a area of 16.                 if we add this up we get a area of 112

so the area is 112cm^2

Happy To Help :)

Question 2.  8 x 2 is 16

2 x 10 is 20..      add that up we get 36m

Please answer this it’s very hard for me

Answers

Answer:

C, D, E, F

Step-by-step explanation:

Remember y=mxb?

m is slope and b is y-intercept

so y=2/7x-9

Remember that slope is RISE/RUN so for every 2 squares that you go up, you go 7 squares to the right.

Also remember that since your graph is going thru your Cartiesian Plane in quadrent 4, your y value in your ordered pairs will most probably be a negative.

Please see the image to help you viualize this.

6x² +12x²y + 6xy² chỉ tui đi

Answers

Answer:

6x(x+2xy+y^2)

Step-by-step explanation:

PLSSS HLEPP ME OUTT ITS URGENTTTT​

Answers

Answer:

the answer is approximately 0.0003.

Step-by-step explanation:

I just searched it up

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