A student scores the following marks in 10 tests
3,7,x,7,12,9,10,4,2,5
If the mean mark is 6, calculate the value of x.

Answers

Answer 1
x=1
Explanation=

10*6 = 60

3+7+7+12+9+10+4+2+5= 59

60-59=1

Related Questions

The measure of angle Q is 70 degrees. Find the measure of angle P.

Answers

Answer:

∠ P = 40°

Step-by-step explanation:

Since PQ = PR then the triangle is isosceles and the base angles are congruent, then

∠ R = ∠ Q = 70° , so

∠ P = 180° - (70 + 70)° ← sum of angles in triangle is 180°

∠ P = 180° - 140° = 40°

Which is the best estimate for the sum 2/9 +10/11? I need this now please helpppppp! Thxx -UrLocalDummy

Answers

Answer:

The best estimate is 0+1=0

Step-by-step explanation:

estimate

2/9 < 1/2 and close to 0 so 2 /9 = 0

10/11 < 1 but close to 1 so 10 /11 = 1

so it's 0 + 1 = 1

Hope it helps!

Natural logs are the inverse of the_______
function e


A. Rational

B. quadratic

C. Exponential

D. Linear

Answers

Answer:

c i think

Step-by-step explanation:

C. Exponential I believe So

Pls help will mark brainiest

Answers

Answer:

35x 10000500

Step-by-step explanation:

35 divided by 7 is 5. 3,500 is 35 x 100. 35 hundreds (3,500) divided by 7 is 5 hundred (5 with 00 at the end). 3,500 divided by 7 is 500.

Hope it helps!

Please help meeeeeeeeeeeee

Answers

Answer:

Equation 1: 50 + 5x = 80, Or 5(10 + x) = 80

Equation 1 answer: 6

Equation 2: 5x + 10 = 80

Equation 2 answer: 14

Solve each equation



2x = 10

-3x = 21

1/3x = 6

-1/2}x = -7

Answers

5,6,12,19 is your answers

Emily puts $10,000.00 into an account which earns 11% interest, compounded quarterly. How
much will she have in the account after 5 years? Round your answer to the nearest cent.

pls hurry it’s for a math test

Answers

s 5on2mllos pnor que creo que esesa cantdadi

ei

Which of these is the best definition of an ellipse?
A. The set of all points in a plane for which the sum of the distances
to two fixed points equals a certain constant
B. The set of all points in a plane for which the difference between
the distances to two fixed points equals a certain constant
C. The set of all points in a plane that are equidistant from a single
point and a line
D. The set of all points in a plane that are a certain distance from a
single point

Answers

Letter A just did it

Use the quadratic formula to solve 2x2 + 2x - 12?

Answers

Answer:

2,-3

Step-by-step explanation:

i did the math lol- trust me

Answer:

yellow: 2 & -3

Step-by-step explanation:

Pls help me pls will mark brainliest

Answers

Answer:

69.08

Step-by-step explanation:

The circumference of a circle is given by 2*pi*r

If the radius is 11 m, then:

C = 2 * pi * 11 = 22 * pi = 69.08 m

please help will give brainliest

Answers

Answer:

Answer is c

Step-by-step explanation:

A student walks at a rate of 1.5 meters per second for 4 seconds and then stops for 4 seconds. Then the student
continues walking at the original rate.
Which graph best represents the student's walk?

Answers

Answer:

A

Step-by-step explanation:

I finished the question and got it right

Graph is a way to represent a lot of data in a visual formal. The graph that best represents the student's walk is graph A.

What is a graph?

A graph is a way to represent a lot of data in such a visual formal that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.

As we can see that the y-axis of the graph represents the distance traveled by the student while, the time taken by the student to cover the distance is given on the x-axis.

We know that the rate of 1.5 meters per second, means that the student will cover the 1.5 meters in 1 second, therefore, the line will be a slope that will represent the walk of the student. At time t=4 seconds, a student stopped for 4 seconds therefore, the time will increase but the distance will be constant for the student, therefore, the situation will be represented by a horizontal line.

Hence, the graph that best represents the student's walk is graph A.

Learn more about Graph:

https://brainly.com/question/14375099

help me please. i have no clue what i’m doing!

Answers

Answer:

I believe transversal is the correct answer because it isn't a part of the triangle.

The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool into two sections are J(15, 5) and K(15, 20). The coordinates are measured in meters. What is the area of each section?

Answers

Answer:

Step-by-step explanation:

Please help me with this I will give brainliest

Answers

Answer:

5x = 34.5

34.5 ÷ 5 = x

A trainer uses 0.75 roll of medical tape on each soccer player. If there are 15 players on the team and 80% get taped up, how many rolls of tape does the trainer need

Answers

Answer:

The answer is 9 rolls.

Step-by-step explanation:

you do 80% of 15. Then you have the number of players that got taped. Now you multiply 0.75 by 12 players.

Please mark me brainliest,5stars, and a thanks! Have a good day!

9 rolls is the answer

y=−2x+4 missing value ( - , -2)

30 points

Answers

Answer: Y=4

Step-by-step explanation:

Answer:

The missing value is 3.

Step-by-step explanation:

I plugged in -2 as y.

-2 = -2x+4

-2 -4 = -2x -4

-6 = -2x

-6/-2 = -2x/-2

3 = x

So the point is (3, -2)

if y=3 then 14y equals

Answers

Answer:

42

Step-by-step explanation:

14(3)

Answer:

42

Step-by-step explanation:

first, substitute 3 for y in 14y. 14y means you are multiplying 14 and y, so when you plug in 3 for y, you're multiplying 14 and 3! :)

14y ⇒ 14(3)

simplify by multiplying 14 · 3.

14(3) = 42

so, when y = 3, 14y = 42.

you can check the answer by solving for y in 14y = 42.

divide both sides of the equation by 14.

14y/14 = 1y or y42/14 = 3

after dividing, you're left with y = 3. that means 14y does indeed equal 42 when y = 3! :)

i hope this helps! have a great rest of your day <3

what is 3x+7=-5(x+3)

Answers

Answer:

8x=-11/4

Step-by-step explanation:

3x+7=-5(x+3)

3x+7=-5x-15

3x+5x+7=-5x+5x-15

8x+7=-15

8x+7-7=-15-7

8x=-22/8

8x=-11/4

X= - 11/4 , Decimal Form= x= -2.75, mixed number form 2 3/4.

Here is a sequence of numbers:
1
3
6
10
15
What is the name given to these numbers?

Answers

Triangular number sequnce

the radius of a circle is 17 yards. What is the circles area ?

Answers

Answer:

907.46

Step-by-step explanation:

Area = pi x radius^2

17^2 = 289

289 x 3.14 = 907.46

Hope this helps. Pls give brainliest.

Answer:

Area = 907.92 square yards

Step-by-step explanation:

[tex]A=\pi r^2[/tex]

[tex]A=\pi 17^2[/tex]

[tex]A=907.92[/tex]

Brainly plz :))

Fractions less then 1/2

Answers

Answer:

Step-by-step explanation:

16 fractions less than one half

1/9, 2/9, 3/9, 4/9, 1/8, 2/8, 3/8, 1/7, 2/7, 3/7, 1/6, 2/6, 1/5, 2/5, 1/4, 1/3

Answer:

1/3, 1/4, 1/5, 1/6

Can anyone please help explain what any of this means and how I could solve this? Many Thanks!

Answers

Step-by-step explanation:

step 1. this is a polynomial division problem

x^2 + 11x + 52

---------------------------------

step 2. (x -3) [ x^3 + 8x^2 + 19x + 13

step 3. x^3 - 3x^2

step 4. 11x^2 + 19x + 13

step 5. 11x^2 - 33x

step 6. 52x + 13

step 7. 52x - 156

step 8. R -> 169

step 9. Ans: x^2 + 11x + 52 R 169

Leo makes a cake by mixing flour, eggs and sugar in the ratio 5 : 3 : 2. If he uses 120 g of sugar, what weight of eggs will he need?

Answers

Answer:

180g of eggs

Step-by-step explanation:

divide 120 by 2 = 60

then times 60 by 3 = 180g

Which number represents 3.5 x 10^9

Answers

Answer:

3,500,000,000

Step-by-step explanation:

the exponent symbolizes how many places the decimal moves. since its positive, it moves to the right. if it where a negative exponent then it would move to the left.

I will check i do it on my phone ill help u out

36% of 110 is what number?

Answers

36% of 110 is 39.6

I hope I helped!!!

What is the value of y?
Y-10
y+130
y+45°

Answers

Answer:

Step-by-step explanation:

its 165

There is a line whose slope is 7 and whose y-intercept is -5. why is it's equation in slope-intercept form?​

Answers

Answer:

y = 7x - 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 7 and c = - 5, then

y = 7x - 5 ← equation of line

Is (6, 8) a solution to y = 8/3x - 8?

Answers

Answer:

Yes it is a solution

Step-by-step explanation:

[tex] \frac{8}{3} \times 6 - 8 = \\ 16 - 8 = 8[/tex]

Answer:

Is (6, 8) a solution to y = 8/3x - 8?

Step-by-step explanation:

4. The state of Neveda has 70 million arces of land. If 90%
of the acres of land is fedecally owned, How many arces of
land are not federally owed?

Answers

this is the correct answer

7 million acres of land would be not federally owned, because 10% of 70 million is 7 million
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