which number from the set {9, 10, 13, 15} is the solution to this equation
3(x - 7) = 9

A) 9

B) 10

C) 13

D) 15

Answers

Answer 1
3 (x-7) = 9
X-7 = 3
X = 10
B is the answer

Related Questions

What is 50 x 79 x 27 + 69

Answers

106,719

Answer:

[tex]50 \times 79 \times 27 + 69 \\ \\ = 106,650 + 69 \\ \\ = 106,719[/tex]

Answer:

173790.07374

Step-by-step explanation:

if u apply DMAS rule it will give u same answer if u simply do this it will again give u same answer for sure!

first multiply each then add 60

pls mark this brainliest

n thanks

Angie has $1,900 in her savings account. If the bank pays 5% simple interest on savings, What is the total amount of money she will have in her account after 5 years?

Answers

Answer:

$19,000 after five years

Step-by-step explanation:

1900 * .5 = 3800    one year

5 * 3800 = 19,000

PLEASE HELP ASAP, MARKING BRAINLIEST! (Read the whole thing please)

Answers

Answer:

$288

Step-by-step explanation:

to find the area of one rectangular eave of the roof you have to multiply 24 by the hypotenuse of the 12 ft x 16 ft triangular side, so you can find that by using the Pythagorean Theorem

16² + 12² = c²

256 + 144 = c²

400 = c²

20 = c

Area of one eave = 24 x 20 = 480

Area of total roof = 480 x 2 = 960

set up a proportion to find cost ('x'):

30 =  x  

100    960

cross-multiply:  100x = 28800

x = $288

What interval notation represents the data graphed below?



A. [1, 4]
B. [1, 4)
C. (1, 4)
D. (1, 4]

Answers

The answer is D since the circle on the left is open and the one on the right is closed.

Help plz:)))I’ll mark u Brainliest

Answers

Answer:

11, 21, 31

Step-by-step explanation:

In a triangle with side lengths [tex]a[/tex], [tex]b[/tex], and [tex]c[/tex], any two sides must have a sum larger than the third.

Using this rule, the possible side lengths out of these choices that could form a triangle are:

21,

11,

31

PLEASE HELP, Will give brainliest if u help and 38 points.

You are deciding between two laptops to purchase. The first laptop has an initial value
of $2000 but loses 14% of its value every year. The second laptop has an initial value
of $1200 but loses 11% of its value every year.
a. Write functions that represent the values (in dollars) of the laptops after t years.
Then graph the functions in the same coordinate plane.
b. Find the approximate monthly percent decrease in value for each laptop.
C. Which laptop should you buy if you plan on selling the laptop in 5 years? Explain
your reasoning

Answers

Step-by-step explanation:

a)

The first laptop

Initial value- $2000Value loss - 14% every yearFunction for value-  V(t) = 2000*0.86^t

The second laptop

Initial value- $1200Value loss - 11% every yearFunction- V(t) = 1200*0.89^t

b)

Monthly percent decrease

The first laptop:

14%/12 = 1.16%

The second laptop:

11%/12 = 0.92%

c)

The second laptop will lose less value in 5 years hence is better choice

See the graph attached

If A1
= 9 and An = An-1 + 4 then find the value of A5
BRAINLIEST TO ANYONE

Answers

Answer:

25

Step-by-step explanation:

a1 = 9

a2 = a1 + 4

a2 = 9 + 4

a2 = 13

a3 = a2 + 4

a3 = 13 + 4

a3 = 17

a4 = 21

a5 = 21 + 4

a5 = 25

This can more easily be done by using this formula

L = a1 + (n - 1) * d

a1 = 9

n = 5

d = 4

L = 9 + (5 -1)*4

L = 9 + 4*4

L = 9 + 16

L = 25

Choose the equation that represents the graph below:



A) Y= -2x-6

B) Y= 2/3x+6

C) Y= -2/3x+6

D) Y= 2x+6

Answers

Answer: C

Step-by-step explanation:

The slope is

[tex]\frac{2-6}{6-0}=-\frac{2}{3}[/tex]

This eliminates all the options except for C.

A new car is purchased for 20000 dollars.The value of the cat depreciates at 12.5% per year.What will the value of the car be, to the nearest cent, after 11 years?

Answers

Answer:

$460.38

Step-by-step explanation:

Use the exponential decay formula, y = C(1 - r)^t

Plug in the original price, depreciation rate, and amount of time:

y = 20000(0.875)^11

y = 460.38

So, the car's value after 11 years will be $460.38

Explain why the expressions 8x(6-4) and 8x6-4 do not have the same value even though they look very similar? HELP!! PLEASE EXPLAIN IT IN 2 complete sentences. (ITS ALGEBRA)

Answers

Answer:

Because 8x6 gives you the same figure.

Step-by-step explanation:

This expression 8x(6-4) has bracket. When you solve it you need to do in bracket first then do outside. 8x(6-4)=8x2=16
This expression 8x6-4 doesn’t has bracket so you need to do x and / first then you do + and -
8x6-4=48-4=44

Convert the following repeating decimal into a fraction
_
0.16

Answers

Answer:  0.16 converted to a fraction is 4/25

Anita made these two statements.
The number 2 is its own opposite.
The opposite of the opposite of 1.5 is 1.5

Fill in the blanks to explain whether theses statements are true or false.

The opposite of 2 is

Answers

Step-by-step explanation:

umm its false cause one thing isn't correct here.

like if we're asked to find the opposite of -5 itll be +5

and in Anita's case, she should have said, that the like for 2 the opposite will be -2 like just change the integers.

like for -, change it to positive and for +, change it to negative

have a great day :)

Find the slope of the line through each pair of point
11. (-4, -3) and (7, 1)
12. (-2, -1) and (8, -3)

Answers

Answer:

11) 4/11

12) -0.2

Step-by-step explanation:

need help asap please !!

Answers

Answer:

17

Step-by-step explanation:

As we know that when diagonals bisect each other it gets divided into two equal parts so

CG = CE

6z - 85 = z

6z - z = 85

5z = 85

z = 85 / 5

Therefore z = 17

Hope it will help :)

Answer:

[tex]\displaystyle 17[/tex]

Step-by-step explanation:

[tex]\displaystyle 6z - 85 = z → 85 = 5z; 17 = z[/tex]

I am joyous to assist you at any time.

Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to install new anti-lock brakes on their cars. These new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collisions with other cars and pedestrians more easily. The new brakes _________ the probability that a vehicle will collide with another vehicle but also give drivers an incentive to drive more _________, which could potentially __________ the number of car accidents.
a. decrease; carefully; increase
b. decrease; recklessly; increase
c. increase; recklessly; increase
d. decrease; carefully; decrease

Answers

Answer:

a. decrease

b. recklessly

c. increase

Step-by-step explanation:

Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to install new anti-lock brakes on their cars. These new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collisions with other cars and pedestrians more easily. The new brakes decrease the probability that a vehicle will collide with another vehicle but also give drivers an incentive to drive more recklessly which could potentially increase the number of car accidents.

Because the new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collision easily, drivers may become confident and drive recklessly which could potentially increase the number of car accidents

If the ratio between boys and girls is 3 to 2 if there are 12 boys how many girls are there

Answers

Answer:

the ratio is 12:8 boys to girls

Step-by-step explanation:

if the amount of boys is 12 then multiply the 3 by 4 and using distribution multiply the 2 by 4 as well to get 8 girls

Brainly please help I been asking

Answers

Answer:

114

Step-by-step explanation:

break apart the shape into 2 smaller shapes and you'll get 15 and 4 for the 1st shape multiply them and you'll get 60. Then for the second shape you'll get 6 and 9 multiply them and you'll get 54. Last add them together and you get 114. (Sorry if I get it wrong)

Reflection over the x axis ;vertical shift down 7 units

Answers

I need a picture to find the answer

37 people showed up to the party. There were 9 less men than women present. How many women were there?

Answers

Answer:

23

Step-by-step explanation:

tbh, i just guessed around the numbers until i got the right one xD

The number of women present in the party will be 23.

What is expression ?

Expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

We have,

Total persons in party = 37

Let,

Number of men = m

Number of women = w

So,

Total number of persons in party ,

m + w = 37     .....(i)

Now,

According to the question,

m = w - 9

Now

Substituting m = w - 9 in equation (i),

i.e.

w - 9 + w = 37

We get,

2w = 37 + 9

2w = 46

We get,

w = 23

So, number of women are 23.

Hence, we can say that the number of women present in the party were 23.

To know more about expression click here

https://brainly.com/question/14083225

#SPJ2

Which equation can be used to find the number that can be added to 410 to get 946?
A
- 410 = 946
B
2 + 410 - 946
с
410 - 2 = 946
D
410 + 946
2

Answers

Answer:

its could be 946-410= 536 and 410+536=946

What is the decimal Expansion of the following fraction?

Answers

Answer:

B

Step-by-step explanation:

1/25 = 0.04 only. this is surely the anwer

Find the interest rate for a $4600 deposit accumulating to $5994.78, compounded monthly for 4 years

Answers

1,394.78 total interest earned. 348.70 per year

Jordan invests £16200 into his bank account
He receives 2.5% per year simple interest.
How much will Jordan have after 5 years?
Give your answer to the nearest penny where appropriate​

Answers

Answer:

18225

Use the formula: .

A = final amount

P = initial amount invested

r = annual interest rate

t = time (in years)

Insert all values in appropriate places.

Simplify.

A=16200(1+(0.025)(6))

Answer:

£18,225

Step-by-step explanation:

2.5% of £16,200 = £405

10% of £16,200 = £1,620

5% of £16,200 = £810

5 years: 16,200 + 5 x 405 = £18,225

Find the sum of 2x2 – 8x — 6 and 9x2 – 8.
Answer:
Submit Answer

Answers

Answer:f

( x ) = x ,  g ( x ) = x 3 − 1 f ( x ) = x 4 + x 3 − 11 x 2 − 5 x + 30 ,  g ( x ) = 2 x − 2 f ( x ) = x 2 ,  g ( x ) = 7 x − 1

in short ways the answer is  7 x − 1

Hence , the sum is [tex]11x^2-8x-14[/tex].

WHAT IS A POLYNOMIAL

In mathematics, a polynomial is an expression consisting of indeterminates (also called variables) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

How to Solve?

Given , we need to add [tex]2x^2-8x-6[/tex] and [tex]9x^2-8[/tex].

So, we can write it as :

[tex]2x^2 -8x-6+9x^2-8[/tex]

Writing like terms together:

[tex]= 2x^2+9x^2-8x-6-8[/tex]

[tex]=11x^2-8x-14[/tex]

Hence , the answer is [tex]11x^2-8x-14[/tex].

Learn more about Algebraic expressions :

https://brainly.com/question/395066

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If a pound of turkey costs ​$0.82, how much will n pounds​ cost?

Answers

$0.82n is the answer

Guys i actually need help​

Answers

Answer:

Rotation

Step-by-step explanation:

Answer:

That is just rotation.

Step-by-step explanation:

It is rotation because if you were to spin it to the right on a 57 degree it will be that angle.

It also not the others because if you were to put reflection that would it would the opposite.

Evaluate x divided by y if x = 3 1/2 and y = 3/4

Answers

Answer:

4 2/3

Step-by-step explanation:

hope this helps

Ryan has two jobs. He earns $9 per hour for x hours babysitting his cousins and he earns $18 per hour for y hours working at the coffee shop. Ryan will work both jobs. He is able to work no more than 10 hours a week, due to school commitments. Ryan wants to earn at least $72 a week, working a combination of both jobs.

Answers

Answer:

Umm I don't think you wrote out the whole question...

Step-by-step explanation:

$18 nine hours, $9 one hour = $177

$18 eight hours, $9 two hours = $162

$18 seven hours, $9 three hours = $153

$18 six hours, $9 four hours = $144

$18 five hours, $9 five hours = $135

$18 four hours, $9 six hours = $126

$18 three hours, $9 seven hours = $117

$18 two hours, $9 eight hours = $108

$18 one hour, $9 nine hours = $99

12 out of 15 randomly selected
students in a class said they would vote
for Kim for class president.
Which is most likely true about all 35
students in the class?

Answers

Answer:

28 students would vote for kim

Step-by-step explanation:

Well first you do 12/15 which would be 0.8

Now to find how many students in that class said they would vote for Kim for class president, we multiply 0.8 by 35 to get that 28 students said they would vote for kim

Help me out to get this math problem solve

Answers

Answer:

1. 1900 children.

2. 600 adults.

Step-by-step explanation:

Let c represent the number children.

Let a represent the number of adult.

From the question given above, we were told that 2500 people entered the fair. This can be obtained as follow:

2500 = c + a ..... (1)

From the question given above, we were told that:

Cost per child = $ 2

Cost per adult = $ 4

Total amount collected = $ 6200

Thus, we can write the above as:

6200 = 2c + 4a .....(2)

Summary:

2500 = c + a ..... (1)

6200 = 2c + 4a .....(2)

1. Determination of the number of children that attended the fair.

From equation 1

2500 = c + a

Make a the subject by rearranging

a = 2500 – c ....... (3)

Substitute the value of 'a' in equation 3 into equation 2

6200 = 2c + 4a

a = 2500 – c

6200 = 2c + 4(2500 – c)

Clear bracket

6200 = 2c + 10000 – 4c

Collect like terms

6200 – 10000 = 2c – 4c

–3800 = –2c

Divide both side by –2

c = –3800 / –2

c = 1900

Thus, 1900 children attended the fair

2. Determination of the number of adults that attended the fair.

Substitute the value of c into equation 3.

a = 2500 – c

c = 1900

a = 2500 – 1900

a = 600

Thus, 600 adults attended the fair.

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