an=81,d=-3,n=18 solve the question by using formula an=a+(n-1)d

Answers

Answer 1

Step-by-step explanation:

An = A + (n - 1)d

We have An = 81, d = -3 and n = 18.

Hence A = An - (n - 1)d = 81 - (17)(-3) = 132.

Answer 2
Substitute the given values into the equation


81= a+-3{18-1]


Solve the brackets


81= a-3[17]



81= a-51


Move 51 to the other side as a positive number


81+51 is 139


Therefore, a is equal to 139



Related Questions

how to find the value of a+b+c given that a=4,b=3 and c= -2

Answers

Answer: 5

Step-by-step explanation: 4 + 3 + -2 = 5

The graph shows the amount of money paid when purchasing bags of peanuts at the zoo:

I REALLY NEED HELP!!!

A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. Four points are shown on the graph on ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars.


What does the point (0, 0) on the graph represent? (4 points)
a
The cost of one bag of peanuts

b
The cost of zero bags of peanuts

c
The cost of two bags of peanuts

d
The cost of three bags of peanuts

Answers

Answer:

B, the cost of 0 bags

Step-by-step explanation:

Answer:

b) The cost of zero bags of peanuts

Explanation:

Because it is at (0,0), that means it's at $0 and 0 bags of peanuts based on the labels for the x and y axis.

{(2,-2),(4,-2),(5,0),(5,2),(9,2),(9,4)} Domain: Range: Function:​

Answers

Answer:

Domain: {2,4,5,9}

Range: {-2,0,2,4}

Function: No

Step-by-step explanation:

Domain = x

Range = y

Domain: {2,4,5,9}

Range: {-2,0,2,4}

Function: No

Answer:

domain = { 2, 4, 5, 9 }

range = { -2, 0, 2, 4 }

function = one-to-many

please help its due in 20 minutes

Answers

Answer: I find the x which is -1/-2  y=1 Hope this help

Step-by-step explanation:

(4,3) (2,2)                     3=(-1/-2)(4)+b

M=y2-y1                      3=2+b

      x2-x2                  -2  =-2

2-3     = -1                  1=b

2-4        =-2

X=-1/-2

 Y=mx+b

help pllsss :p and merry christmas or happy Hanukkah

Answers

Answer:

104

Step-by-step explanation:

156 divided by 6. 156-26=130. now 20 percent of 130 =26. 130-26 = 104

HELP! Given f(x)=6(1-x), what is the value of f(8)?

a: 42
b: 48
c: -42
d: 6

Answers

Answer:

The answer is c: -42

Step-by-step explanation:

Because f(8): 6(1-8) is 6(-7) so is -42.

GUYSSSSSSS!!!!!!! PLEASE PLEASE!!! PLEASE HELP!! ILL MARK BRAINLIEST!!

Answers

Answer:(1, 1)

Step-by-step explanation:

u just move it 4 left and 3 up cuz x is left and right and its negative so left, then y is up and down and it's positive so up

How many choices are in the sample space of drawing a club out of a deck of 52 cards?

A. 13 choices
B. 52 choices
C. 26 choices
D. 12 choices

Answers

Answer:

A. 13

Step-by-step explanation:

Find the area of the irregular figure
6 in.
10 in.
9 in
A = [ ? ]in.2
6 in.
7 in.
5 in.

Answers

Answer:

149 in sq

Step-by-step explanation:

split in to the 3 rectengles

top right 6x(9-6)=18

middle rec 6×(10+6)=96

bottom rec. 5x7=35

total 149

Answer:

area = 149 in.²

Help me please !!!!!!!!!!

Answers

Answer:

10 inches

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

The formula for diameter is 2 x radius

Given that the radius is 5. We do 5 x 2 which equals to 10

Hope I helped

Given the initial inequality 24, identify which
operation preserves the
inequality symbol and which operation reverses the
inequality symbol.Write the
new inequality after the operation is performed.
Multiply both sides by-2.

Answers

Answer:

it doesn't show what your talking about be more specific.

Step-by-step explanation:                                                                                               explain what your talking about.

PLZ HELP ME I BEG YOU!!!!!!!!!!!!!!
Sam has $92 and spends $5 every day. William has $41 and spends $2 every day. On what day will they have the same amount of money? Show work.

Answers

Day 17, they will have the same amount of money.


$92 - ($5 • 17) = 7

$41 - ($2 • 17) = 7

Let 17 represent the amount of days they both spent money, AND the day they ended up with the same amount of money. No other day before 17, they would’ve had the same amount of money. You can figure this out by plugging a different number in for 17, and seeing the answer will not be the same for both equations

Hope this helps.

The drama club needs to sell 50 tickets to the school play. So far, they have sold 9 tickets. What percent of their target have they sold? Enter your answer in the box .

PLS HELP

Answers

Answer:

18%

Step-by-step explanation:

9/50 = 0.18 and 0.18 is 18% in percentage form

Answer:

18%

Step-by-step explanation:

FIrst set up a fraction so that later we can convert that into a percentage:

9/50

9 represents the number of tickets sold and the 50 represents the total

We divide numerator by denominator.

9/50 =

0.18

We multiply by 100 to get our percentage and we get 18%

i need help on My homework help me​

Answers

Answer:

x = 18

Step-by-step explanation:

1/2 x - 7 = 1/3 (x - 12)           Remove the brackets on the right

1/2x - 7 = 1/3 x - 12*1/3

1/2x - 7 = 1/3 x - 4               Subtract 1/3 x from both sides

1/2x - 1/3x - 7 = - 4             Combine like terms on the left

1/6x - 7 = - 4                       Add 7 to both sides

1/6 x = - 4  + 7                    Combine the right side

1/6 x = 3                             Multiply both sides by 6

6 * 1/6x = 3*6

x = 18

need help again math 7th grade ​

Answers

Answer: 1/2 as a fraction

.5 as a decimal

Step-by-step explanation: The probability of them rolling a number would be 3/6 or simplified 1/2 because if there is a 6 sided dice the denominator would be 6 and there are 3 odd numbers on the dice which are 1,3,and 5 so if u have to simplify it would be 1/2 if not 3/6. Also 1/2 as a decimal would be .5

Answer:

Fraction: 1/2, Decimal: 0.5

Step-by-step explanation:

From numbers 1 to 6, 3 of them are odd numbers, 1, 3, and 5

So 3/6 of the numbers are odd numbers, now we have to see if we can simplify 3/6, which u can, 3/6 = 1/2

1/2 is ur fraction, to find ur decimal divide 1 by 2, and u get 0.5

Given the following system of equations, identify the type of system.
x + 2y = 6
3x + 6y= -9
A. Consistent
B. Inconsistent
C. Equivalent

Answers

Answer:

The two lines in the graph are parallel, so it is B. Inconsistent since there is no solution.

Answer:

the answer would be B inconsistent

Write an equivalent expression to (-0.25x - 3) - (2.5x + 1.7) using the fewest possible terms.

Answers

Answer: -2.75*x - 4.7

Step-by-step explanation:

In the equation we have only one variable, this means that the minimum possible number of terms will be two, one term with x, and one term without x.

We can start with the equation:

(-0.25x - 3) - (2.5x + 1.7)

Now, let's rewrite this as:

-0.25x - 3 - 2.5x - 1.7

(-0.25*x - 2.5*x) + (-3 - 1.7)

Solving the parentheses we get:

-2.75*x - 4.7

That is the equivalent expression that has the fewest possible terms

44 = 2 × (3 - 1)
help me answer this

Answers

Answer:

its a 48 lol (kkkkkkkkkkk)

HURRRY FIRST GETS BRAINLIESTTTT

Answers

Answer:

B) one function has a higher rate of change

Step-by-step explanation:

I used process of elimination

A) one function is linear are the other is non linear:

False, because they are both lines.

C) one function has a higher starting value

False, because they both start at 0

D) they are both the same function

False, because one has a steeper slope than the other one

8 more than a third of a number

Answers

Answer:

8 + 1/3n

Step-by-step explanation:

There are 2 questions PLease help need it quickley will give brainiest

Answers

Answer:

This is the answer

Answer:

did the math person above is right sorry for being late :)

Step-by-step explanation:

What is your favorite food? P.S. I want to give points.

Answers

Answer:

Mine is Mexican tacos and tortas asada

Answer:

I like pizzas. pizzas for life bro.

Find the two square roots of 1/16​

Answers

Step-by-step explanation:

The square root of a fraction is the square root of the numerator over the square root of the denominator. In this case, 1/4. The square root of 1/16 = 1/4 Ans.

The square root of 1/16 is 1/4.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

√(1/16)

This can be written as,

= √1 / √16

= 1 / 4

Thus,

1/4 is the square root of 1/16.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

*when you look up every math question instead of using your brain*

Me:.....

Answers

Answer:

For real, Also, would you mind giving me brainliest?!

Step-by-step explanation:

Ty if u give me brainliest and ty for the points <3

Choose all the equations that are true if y = 6.
52.37 – 46.37 = y
2 / 3 y = 4 1/2
8y = 48
3.2 + y = 9
y = 4 = 24

Answers

Answer:

The first and third.

Step-by-step explanation:

For the first one, you just subtract 52.37 and 46.37 and the answer is 6, so that makes the equation 6=y, which is right. The second one equals 6.75, so that's not what we need. For the third one, you divide by 8 on both sides to isolate y, and that results in y=6, which is right. For the fourth one you subtract by 3.2 on both sides to isolate y and that results in 5.8, which isn't what we need. I think for the last one you meant to type y=4+24, in which case that would be y=28, which isn't what we need.

50,000x2.109.........

Answers

Answer:

105450

Step-by-step explanation:

easy

Answer:

50,000x2.109

Step-by-step explanation:

A field is in the shape of a Rectangle. The width
of the rectangle is x yards. The length of the
rectangle is 3 more than the width. Write an
expression for the perimeter of the field.

Answers

Answer:

4x+6

Step-by-step explanation:

The perimeter of the field can be obtained by calculating the distance around the field.

in this case, we know that the shape of the field is a rectangle.

The perimeter of a rectangle can be obtained by using the formula

[tex]2(l+b)[/tex]

The width of the rectangle is given as x yards

The length of the rectangle is given as x +3 yards

Therefore, an expression to determine the perimeter of the rectangle can be given as

[tex]2(x+3+x)\\=2(2x+3)\\=4x+6[/tex]

What is the quotation (-3)^0/(-3)^2

Answers

Hey there!

(-3)^0 / (-3)^2

(-3)^0 = 1 ⬅️ Numerator

(-3)^2 = (-3)(-3) = 9 ⬅️ Denominator

Answer: 1/9 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Select the correct answer.
A. 0.25
B. 0.33
C. 0.5
D. 0.75

Answers

you can use a calculator

Two systems of equations are shown below:

System A
System B
3x + 2y = 3
−x − 14y = 1
−2x − 8y = −1
−2x − 8y = −1


Which of the following statements is correct about the two systems of equations? (1 point)

The value of x for System B will be one−third of the value of x for System A because the coefficient of x in the first equation of System B is one third times the coefficient of x in the first equation of System A.
The value of x for System A will be equal to the value of y for System B because the first equation of System B is obtained by adding −4 to the first equation of System A and the second equations are identical.
They will have the same solution because they represent the same lines when plotted on the coordinate axes.
They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.

Answers

Answer:

The two linear equations represented in system A as :

3 x + 2 y =3   -------(1)

- 2 x - 8 y = -1  ------(2)

(1) × 2 + (2) × 3 gives

⇒ 6 x + 4 y - 6 x - 24 y = 6 -3

⇒ - 20 y = 3

⇒ y =

Putting the value of y in equation (1), we get

Two linear equation represented in system B is:

3.   -x - 14 y =1

4.   - 2 x - 8 y = -1

-2 ×Equation (3) + Equation (4)=

2 x +28 y- 2 x - 8 y= -2 -1

⇒ 20 y = -3

⇒y =

Putting the value of y in equation (3),we get

As Two system , that is system (A) and System (B) has same solution.

By looking at all the options , i found that Option (D) is correct. The two system will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.

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