Mathematics High School

the mean of 5 numbers is 8.
one more number is added to the group.
the mean of the numbers is 9.
what number was added to the group​

Answers

Answer 1

Answer:

14

Step-by-step explanation:

Sum of the first five numbers = 40

The sum of the six numbers should equal 9 x 6 = 54

So, you would do 54 - 40 = 14

Hope that helps! :)

-Aphrodite

Related Questions

Is -2 rational or irrational?

Answers

Answer:

Rational

Step-by-step explanation:

Rational. It can be expressed as a fraction, which is the definition of a rational number.

Hope this Helps!

-2 is rational

This is because every negative integer is a negative rational number.

We know that -1 = -1/1, -2 = -2/1, -3 = -3/1, -4 = -4/1 and so on …….

In other words, any negative integer n can be written as n = n/1, here n is negative and 1 is positive.

So, negative 2 is rational.

a triangle has a side length of 5.4 and 7 x x=​

Answers

Answer:

D. 8.8

Step-by-step explanation:

As the pythagorean theorem.

A² + B² = C²,

5.4 × 5.4 + 7 × 7 = C²,

29.16 + 49 = C²,

78.16 = C²,

8.8 ≈ C

please helppp

Solve with ratio sin(30) to solve the missing side length x. Round to the nearest tenth​

Answers

Answer: x=5

Explanation:
sin=opposite side/hypotenuse
The opposite side is x and the hypotenuse is 10.
So your equation is: sin(30)=x/10
In order to get x by it self times ten to each side of the equation.
10 x sin(30)= x
Put 10 x sin(30) into graphing calculator and make sure your calculator is set to degrees.
Your answer:
5= x

Work on paper:

Answer:

we have

sin30=perpendicular/hypotenuse

1/2=x/10

x=½×10=5

x=5

is your answer

help me answer the last question

Answers

We have the equation 1/2x + 200 =1200 so we know that we have 200 already as one of the numbers so 1/2 is half of x + 200 equals 1200 since we have 200 we know that 1/2 of x is going to be 1000 because 1000+200=1200 meaning x is 2000. So your answer would be x=2000 or 1/2 2000 + 200=1200

Find the missing length to the nearest tenth using the Pythagorean Theorem.
a = ?, b = 10, c = 12

Answers

5 I’m not the best at math but counting to the nearest tenth that should be answer or 0

1 ÷ 1/4 what does that equal
​

Answers

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

estamate the value of y when x = 2.5

Answers

Answer:

There should be a rule

Step-by-step explanation:

Replace the x values from the question with the rule given and you will get your answer

1. Put the following numbers in order from least to greatest. 0.8, 1/10, 3/100, 0.91
2. Put the following numbers in order from least to greatest. 0.9, 0.35, 11/100, 7/10, 0.6, 0.21
3 Put the following numbers in order from least to greatest. 36/100, 0.2, 1/10, 8/100, 0.5, 0.44

PLEASE HELP ITS DUE IN 10 MINUTES
​

Answers

Answer:

0.8,0.91,1/10,3/100

0.6,0.9,0.21,0.35,7/10,11/100

0.2,0.5,1/10,0.44,8/100

Step-by-step explanation:

Answer:

0.8,0.91,1/10,3/100

0.6,0.9,0.21,0.35,7/10,11/100

0.2,0.5,1/10,0.44,8/100Step-by-step explanation: IVE DONE THIS BEFORE TOO

find the surface area of a rectangular prism with dimensions 5 ft 6 ft 7 ft

Answers

Answer: 214 sq ft

Step-by-step explanation:

A=2(wl+hl+hw)=2·(6·5+7·5+7·6)=214

Answer:

214 ft

Step-by-step explanation:

hope this helps

If the discriminant of an equation is positive, which of the following is true of the equation
A it has one complex solution
B it has one real solution
C it had two real solutions
D it has two complex solutions

Answers

Answer:

C it has two real solutions

Step-by-step explanation:

If the discriminant of a quadratic equation is positive, it means that the graph intersects the x-axis, and hence produces two real solutions.  

If the discriminant is zero, then the graph is tangential to the x-axis, and there will be two real coincident solutions.  

If the discriminant is negative, then there are two complex solutions.

Answer:

C

Step-by-step explanation:

GIVING BRAINLIEST!!!


The first rule is multiply by 2, then subtract 4 starting from 6. The second rule is add 3, then multiply by 2 starting from 1. What are the first four ordered pairs using the two sequences?


A (0, 0) (6, 1), (8, 2), (12, 22)

B (6, 1), (10, 8), (14,22), (22, 50)

C (6, 1), (8, 8), (12, 20), (20, 45)

D (6, 1), (8, 8), (12, 22), (20, 50)

Answers

Answer:

D, (6,1), (8,8), (12,22), (20,50)

Step-by-step explanation:

Hope this helps!! :D

What’s the value of x?

Answers

answer

5

2x =10

÷2. ÷2

× = 5

could somebody answer both?
1. Our new computer is 3 times faster than our old one. How fast is the new computer?
2.A geology kit costs $85. Sophia has $25 and plans to save $5 a week until she can pay for the kit. How many weeks will it take before she can buy the geology kit?

Answers

Answer:

1. 3x faster

2. 12 weeks

Step-by-step explanation:

(85-25)/5=12

What does 2x+1-3=0 means

Answers

Answer:

it means that 2x+1-3 will equal to 0

Step-by-step explanation:

your on a app for answers

In Oo, mCA= 100 and ABCD.
What is mBD?
mBD

Answers

Answer:

arc BD = 100

Step-by-step explanation:

arc BD = arc CA because ∠AOC = ∠BOD (vertical angles)

arc BD = 100

What us the y-intercept of the function described in the table

Answers

Answer:

10

Step-by-step explanation:

In which choice is
not a function of x?
A(2, -3), (-2, 3), (3,-2), (3, 2)
B. (2, 3), (3, 4), (-4, 5), (-5, 6)
c. (3,-2), (3, 2), (3, 3), (2, 2)
D. (1, 1), (1, 2), (2, 3), (3, 4)

Answers

I think the answer is C

HELP ASAP

Find an expression which represents the sum of (6x - y) and (7x - 7y) in simplest terms.​

Answers

Answer:

6x-y+7x-7y

6x+7x-y-7y

13x-8y.

guys help me please

Answers

Answer:

what's the question?............

please i’m trying to help my gf work i’m in 8th i’ll give you brainliest

Answers

Take a better pic and i will explain in comment

Answer:

here is ur answer.....

hope it helped u and ur gf......

What is the nearest ten for the point shown on the number line below?​

Answers

The answer is fourth

Answer:

the fourth

Step-by-step explanation:

Customer- I recently saw an advertisement that said your company would give 5% discount to anyone who enrolls in your automatic payment plan, my monthly bill is $75 how much will I save if I enroll?

Answers

Answer: $3.75

Step-by-step explanation:

The amount that you would save is 5% of your monthly bill of $75.

This amount is:

= 75 * 5%

= $3.75

The total amount that you would pay is:

= 75 - 3.75

= $71.25

Find f(-5) if f(x) = x+ 11.
06
05
04

Answers

f(-5) is 6 if f(x)=x+11, just trying to answer in the question format.

Please solve 6 - 3x = 14

Answers

Answer:

Step-by-step explanation:

Answer:

X= -8/3

Step-by-step explanation:

Evaluate the equation: e - 3.1 = 5

A. e = 1.9

B. e = 2.1

C. e = 8.1

D. e = 8.5

Answers

Answer:

C. e = 8.1

Step-by-step explanation:

e-3.1= 5

e = 5+3.1

e = 8.1

Which of the following Metric prefixes is largest?
O A. kilo
O B. mega
O c. deci
O D. giga

Answers

The largest is D. giga

Answer:

mega cause it is bigger than giga which is bigger than kilo

Can anyone pls help me with this, I don't even know where to start? I can also give Brainliest

Answers

The interior angles of a parallelogram will always equal 360. The interior angles of a triangle are 180 if it is a equilateral triangle then the angles are 60 degrees each. You know 2 sides of parallelogram. The 100 degree and 90 degree. You can find the one opposing the x because it’s on a straight line and a straight line is 180 degrees if a triangle is 60 degree angle then the opposing angle to complete the straight line must be 180-60 so you get 120. You now know 3 sides. 120, 90 and 100
They should add up to be 360 so you can set up an equation like so
120+90+100+x=360
And x = 50

Answer:

x = 50°

Step-by-step explanation:

The triangle has 3 congruent sides and is therefore equilateral.

The 3 angles are then congruent, each 60°

The left angle in the quadrilateral is adjacent to 60° of the triangle

180° - 60° = 120° ← angle inside quadrilateral

The sum of the interior angles of a quadrilateral = 360°

Subtract the sum of the angles from 360° for x

x = 360° - (120 + 90 + 100)° = 360° - 310° = 50°

PLEASE HELP WILL GIVE BRAINLIEST!!!!!

On a given planet, the weight of an object varies directly with the mass of the object. Suppose that an object whose mass is 9kg weighs 63 N . Find the weight of an object whose mass is 5kg.

Answers

Answer:

35

Step-by-step explanation:

9Kg =63N

5Kg=X (Cross Multiple)

=X×9 =5×63

divide both sides by 9

X=5×63

---------

9

=35

Answer:

35 N

Step-by-step explanation:

let w = weight of object

and m = mass of object

w = mk   where k is the constant of proportion

63 = 9k

k = 7

So, w = 7m

w = 7(5) = 35 N

Part A: Mike wants to join a gym. He has to pay an initiation fee of $16 and equal monthly payments for the year. The most he wants to pay is $580 for the year for his gym membership. a.) Write an inequality that you can use to determine the most he would want to spend for his monthly payments.

Part B: Now use your inequality from 15a to determine how much Mike’s monthly gym payment can be if the most he wants to pay is $580 for the year for his gym membership..

Answers

Answer:

Part A: [tex]12x+16\leq 580[/tex]

Part B: $47 per month

Step-by-step explanation:

Part A: 12 months in a year. Pays x amount of $ per year, with an additional $16 initiation fee. He wants to spend less than $580 total a year. Thus, [tex]12x+16\leq 580[/tex].

Part B: Solve the inequality for x.

$580 - $16 = $564

x = $564/12 = $47

Hope this helps! :)

Trey bought 3 and 3 fourths pounds of apples from the grocery store. Corinne bought 1 and 1 third pounds of grapes from the grocery store. How many more pounds of fruit did Trey buy

Answers

Answer: 2 5/12

Step-by-step explanation:

Trey bought 3¾ pounds of apples from the grocery store. Corinne bought 1⅓ pounds of grapes from the grocery store.

To know how many more pounds of fruit that Trey bought, we have to find the difference between the value given above and this will be:

= 3¾ - 1⅓

= 3 9/12 - 1 4/12

= 2 5/12

Trey bought 2 5/12 pounds more.

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