Donna is collecting stamps. On the first day, she collects 5. On the second day, she collects 9. Each day, she collects 4 more stamps than the day before. How many total stamps will she have after 20 days?

Answers

Answer 1

Answer:

81 stamps

Step-by-step explanation:

Here we will use the AP formula

We know that

a_n = a + (n - 1)d

a = first term = 5

n = number of terms = 20

d = common difference = 9 - 5 = 4

On putting values

=> a_20 = 5 + (20 - 1)4

=> a_20 = 5 + (19)4

=> a_20 = 5 + 76

=> a_20 = 81

Therefore,

She will have 81 stamps after 20 days

Answer 2

[tex]\huge{\purple{\underline{\underline{\sf{\pink{ANSWER:-}}}}}}[/tex]

Here we have,

first term (a) = 5

no. of terms (n) = 20

common difference (d) = 9 - 5 = 4

[tex]\implies\tt{a_n = a + (n - 1) \times d} \\ \\ \implies\tt{a_20 = 5 + (20 - 1) \times 4} \\ \\ \implies\tt{a_20 = 5 + 19 \times 4} \\ \\ \implies\tt{a_20 = 5 + 76} \\ \\ \implies\tt{a_20 = 81}[/tex]

Hence, there will be 81 stamps after 20 days.

Related Questions

Axel and Carl both volunteer at a science museum. The manager needs one helper at a time for at most 18 hours this month. Axel wants to work at least 6 hours. The manager wants Carl to work no more than twice as many hours as Axel. Let a represent the number of hours that Axel works. Let c represent the number of hours Carl works. Which system of inequalities represents the constraints of this problem situation?

Answers

We want to find a system of inequalities that models the given situation.

We will find the system:

a + c ≤ 18

a ≥ 6

c ≤ 2*a

First we define the variables:

c = number of hours that Carl works.a = number of hours that Axel works

The given information is:

The manager needs one helper at a time for at most 18 hours.

From this we can write:

a + c ≤ 18

Axel wants to work at least 6 hours.

a ≥ 6

The manager wants carl to work no more than twice as many hours as Axel.

c ≤ 2*a

The system is then:

a + c ≤ 18

a ≥ 6

c ≤ 2*a

If you want to learn more, you can read:

https://brainly.com/question/19526736


(a) Rowena buys and sells clothes.
(1) She buys a jacket for $40 and sells it for $45.40.
Calculate the percentage profit

Answers

Answer:0.054%
Explanation: I’m sorry if I’m wrong

Mr. Flores opened an account with a deposit of $5,000.


• The account earned annual simple interest.

• He did not make any additional deposits or withdrawals.

• At the end of 4 years, the balance of the account was $6,500.


What is the annual interest rate on this account?

A. 5.8%

B. 7.5%

C. 3.3%

D. 1.9%

Answers

Answer:

B. 7.5%

Step-by-step explanation:

First, we need the Simple Interest (S.I)

Total = Principal + Simple Interest

T = P + S.I

6500 = 5000 + S.I

[make S.I the subject of the formula]

S.I = 6500 - 5000

S.I = 1500

Simple Interest = (Principal × Rate × Time) / 100

S.I = (P × R × T) / 100

1500 = (5000 × R × 4) / 100

1500 = 20000R / 100

1500 = 200R

[divide both sides of the equation by 200]

1500 / 200 = 200R / 200

R = 1500 / 200

R = 7.5

The annual interest rate is 7.5%

The total entrance fee for a group of 4 adults and 3 children to a water park is $220. The total fee for a group of 2 adults and 1
child is $98. Determine the entrance fee for an adult and the entrance fee for a child.
a. Select the system of equationslokat model the situation. Solve by using substitution.

Answers

Answer:

A.

Step-by-step explanation:

The entrance fee of an adult is equal to $37 and the entrance fee of a child is equal to $24.

What is a system of equations ?

A system of equations is a set or collection of equations that you deal with all together at once.

It is given that :

The total entrance fee for a group of 4 adults and 3 children = $220

and

The total entrance fee for a group of 2 adults and 1 child = $98

Let's assume that the entrance fee for an adult is x and entrance fee for a child is y.

So , the equations can be written as :

4x + 3y = $ 220  --- --- --- --- --- ---- ---- ---- ------ ----- ----Equation 1

2x + y = $ 98  --- --- --- --- --- ---- ---- ---- ------ ----- ----Equation 2

Now , multiply equation 2 by 2 :

4x + 2y = $ 196  --- --- --- --- --- ---- ---- ---- ------ ----- ----Equation 3

Subtracting equation 3 from equation 1 , we get :

(4x - 4x) + (3y - 2y) = $220 - $ 196

y = $24

or entrance fee of a child is $24.

Now , substituting the value of y in equation 1 , we get :

4x + 72 = $220

4x = 148

x = $37

or entrance fee of an adult is $37.

Therefore , the entrance fee of an adult is equal to $37 and the entrance fee of a child is equal to $24.

Learn more about system of equations here :

https://brainly.com/question/25869125

#SPJ2

find the perimeter of the shape below if x=3 and y=10

Answers

Answer:

the same time as a great day happy independence day

a. Draw a scaled copy of Polygon A with scale factor 1/2. b. Draw a scaled copy of Polygon B with scale factor 2. c. Draw a scaled factor of Polygon C with scale factor 1/4.

Answers

Draw a c with a scale factor 1/4

Which of the following represents the function graphed? F(x)=1/2 x f(x)=x f(x)= x+2

Answers

Since the graph is located about the origin and increase 1 to 1 the answer is
F(x)=x

Please help me with this question!

Answers

It’s C,
Hope it helps,
Message me if you want explanation,
Can I get brainliest answer

Please help I don't understand this!

Answers

Answer:

5

Step-by-step explanation:

you have to look at the temperature in the picture and look at how it slopes down and predict.

A negative to a even power is always

Answers

Answer:

a positive number

Step-by-step explanation:

i hopw this help chu:>

Quadratics by taking square roots (intro)

Answers

Answer:

Lesser: -6

Greater: 6

Step-by-step explanation:

h(x) = -5x^2 + 180

-5(x^2 - 36)

-5(x+6)(x-6)

x = -6, 6

Renting a kayak costs $10 per hour. renting a canoe cost $5 per hour plus a $7 fee. Which equation could be used to determine h, the number of hours for which they each cost the same ?

Answers

10(h)+5(h)+7, because 10 and 15 are charged per a hour, so they have a h(house). 7 dollars is a fee that you only pay once. I hope this helps :)

Can abort help me with this math question the right answers

Answers

Answer:

pretty sure its D. 1.6 x 10^9

Please help me answer this step by step
y + 1/2 = 3/4

Answers

Answer:

just translate

Step-by-step explanation:

thats bot much, ñ

Answer:

[tex]y + \frac{1}{2} = \frac{3}{4} \\ y + \frac{2}{2 \times 2} = \frac{3}{4} \\ y + \frac{2}{4} = \frac{3}{4} \\ y = \frac{3}{4} - \frac{2}{4} \\ y = \frac{1}{4} \\ thank \: you[/tex]

20 books are 20$ 30 books are 75$ and 40 books are 100$ WHAT IS THE ANSWER

Answers

assuming you're trying to find 50 books = $n

n = 160$

Pleaseeee help asappp!

Answers

Answer: A and C

Step-by-step explanation:

plugging the ordered pairs into the suction on a graph is a good way to find them!

Answer:

I answered in comments but it was the first and last one :)

Step-by-step explanation:

175% of what number is 217?

Answers

124
That’s the answer

Nine hundred sixty seven divided by four with remander

Answers

Answer:

240

Step-by-step explanation: If this helped pls give this Brainliest answer.

Answer:

967÷4= 241 r 3

Step-by-step explanation:

Does the graph represent a function? Why or why not? ​

Answers

Answer:

This graph does represent a function because when you do the vertical line test, none of the x-values intercept more than once.

Step-by-step explanation:

Hope this helps!

You need 3 sticks of butter for every 24 cookies you bake.how much will you get for 5 stick of butter

Answers

Answer:192 cookies

Step-by-step explanation:

8•24=192

2. Frank has been driving at a constant speed for 3 hours, during which time he traveled 195 miles. Frank would like to know how long it will take him to complete the remaining 455 miles, assuming he maintains the same constant speed. Help Frank determine how long the remainder of the trip will take.The remainder of Frank's trip is _______ hours.

Answers

Answer:

1: 195 divide by 3=65m/h

2: 455divide by 65=7hours

The remainder of Frank's trip is __7_____ hours.

PLEASE HELP ANSWER THIS QUESTION
(ILL GIVE BRAINLIEST TO THE BEST ANSWER TOO)
In Earth's southern hemisphere, the summer season is from December to March and winter is from June to September. The table shows the highest temperatures recorded at the South Pole for three different months.

Graph model:
South Pole Temperatures
Month Highest temperature (°F)
January 6
June –24
November –2

Each month's highest recorded temperature is plotted on the number line.

4. Which month had the coldest of the three temperatures? Explain.

Answers

#4

June is the most coldest.

How?

Mention the temperatures

January=+6°CJune=-24°CNovember=-2°C

Lowest is the coldest .(June is the coldest month)

Answer:

January = 6°F

June = -24°F

November = -2°F

By the above given observation we can say that June is the coldest as it has the lowest temperature in all.

Sakura's house is at an elevation between 113 m and 120 m above sea level. Her friend Ted lives about 15 m below her.

Part A: Choose the compound inequality that describes the elevation x of Ted's house

B: Ted lives between ____ m and _____ m above sea level.​

Please help me, I really don't know where to start.

Answers

Answer:

98 or 105

Step-by-step explanation:

Work out m and c for the line:
y = 10 – x

Answers

Answer:

what

Step-by-step explanation:

Remember point slope equation: y=mx+b

Take, y=10-x and rearrange into point slope.

y=-x+10

Therefore, m= -1 and c= 10.

The Lucas numbers are defined by the recursive formula t1 = 2, t2 = 1, tn = tn - 1 + tn - 2, where n âN and n > 2. What are the first 9 Lucas numbers?

Answers

The first two are given to you, [tex]t_1=2[/tex] and [tex]t_2=1[/tex]. Use the recursive formula to get the 3rd term; then use the 2nd and 3rd terms to get the 4th; and so on.

Since the n-th Lucas number is the sum of the previous two Lucas numbers, you have

[tex]t_3 = t_2 + t_1 = 1 + 2 = 3[/tex]

[tex]t_4 = t_3 + t_2 = 1 + 3 = 4[/tex]

[tex]t_5 = t_4 + t_3 = 4 + 3 = 7[/tex]

[tex]t_6 = t_5 + t_4 = 7 + 4 = 11[/tex]

[tex]t_7 = t_6 + t_5 = 11 + 7 = 18[/tex]

[tex]t_8 = t_7 + t_6 = 18 + 11 = 29[/tex]

[tex]t_9 = t_8 + t_7 = 29 + 18 = 47[/tex]

14 divided by 7,574 I need the answer to be simplified, please

Answers

Answer:

0.0243902439

Step-by-step explanation:

Which type of flower received a prime number of votes. Used the graph

Answers

Answer:

Where is the graph to use

The owner of an organic food store would like to analyze the sales data to determine if the business is growing, declining or remaining flat. The owner has the following data: Sales Revenue Last Year = $350,000 // Sales Revenue Current Year = $402,000. What is the sales growth? Question 3 options: 10% 17% 13% 15%

Answers

The percentage sales growth recorded by the food store is 15%

Given the Parameters :

Last year revenue = $350,000

Current year revenue = $402,000

The growth sales can be obtained using the relation :

Change in revenue / Last year revenue) × 100%

Change in revenue = Current year - Last year

Change in revenue = $402,200 - $350,000 = $52,200

Hence, percentage sales growth :

(52,200 / 350,000) × 100% = 14.914 %

Therefore, the percentage sales growth is 15%.

Learn more :https://brainly.com/question/13218948

Answer: 15%

Step-by-step explanation:

A bag contains 2 red, 4 yellow and 6 blue balls. the probability of drawing a blue ball from the bag at random is

Answers

Answer:

1/2

Step-by-step explanation:

because add 2 4 6 it gives 12

blue is 6 divide 6 by 12 it gives 1/2

A pizza shop charges $5 for a slice of pizza. They cut each whole pizza into 8 slices. They sold 107 pizzas by the slice. How much money did they make?

Answers

Answer:

$4280

Step-by-step explanation:

$5x8= $40

107x$40= $4280

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