Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000.

How many pennies in Russell’s collection are dated after 2000?



Plz help, I think I'm overthinking it.

Answers

Answer 1
480 pennies.

25% are dated before 1980, therefore:
1200(total):100 = 12 (1%)
12(1%)x25 = 300 (25%)

35% are dated from 1980 to 2000, therefore:
12(1%)x35 = 420 (35%)

25% are dated before 1980, 35% are dated from 1980 to 2000 and the rest are dated after 2000.
25% + 35% = 60%.
300(25%) + 420(35%) = 720.
60% = 720.
100%-60% = 40%.
40% is the amount of pennies that are dated after 2000.

The total (100%) of the pennies is 1200.
We also know that 60% of the total (1200) is 720.

1200(100%) - 720(60%) = 480(40%).

Therefore, the amount of pennies dated after 2000 in Russell’s Collection is 480.

Related Questions

HELP PLEASE I REALLY NEED HELP

Answers

-3.121875

First step is take it out of fractions and into decimals, they are easier to work with.

(0.5x1.125)x(2.66x3.33)x7.5

Then PEMDAS

Parentheses
0.625x-0.66x7.5

Then multiply

-0.41625x7.5

Answer
-3.121875
Hi how has your day been

If u have 2 dogs on a couch 3 frogs on the ground , and 15 turtles on the ground how many legs are there all together

Answers

84
2 dog on the couch = 12 ..8 dog legs and 4 couch legs
3 frogs = 12 legs
15 turtles = 60 legs

help plzzzzzzzzzzzzzzzz

Answers

Answer:

decimal form is -13.75 mixed fraction form -13 3/4

the decimal would be -13.75 and the fraction is - 13 3/4

Write the phrase "9 increased by a number x" as an algebraic expression

Answers

Answer:

9+x

Step-by-step explanation:

To write 9 increased by a number x, you need to know that when it says "increased by" it means adding.

So it is saying 9 is being added by x, or 9+x as an algebraic expression.

The phrase "9 increased by a number x" as an algebraic expression would be; 9+x

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We need to write the given phrase "9 increased by a number x" as an algebraic expression

Let the unknown number = x

To write 9 increased by a number x, we need to know that when it says "increased by" it means adding.

So it is saying 9 is being added by x, then

We can write it 9+x as an algebraic expression.

To know more about an expression follow the;

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Five friends attend a matinee movie and spend $8 per ticket. They also purchase a small bag of popcorn each. The friends spend a total of $62.50. Let x be the price of a small bag of popcorn.

Part A

Which equation represents the situation?
62.50 + 8x = 40
40 + 8x = 62.50
40 + 5x = 62.50
62.50 + 5x = 40
Part B

How much does each small bag of popcorn cost?

$

Answers

Answer:

Formula: (cost of ticket + cost of popcorn) * # of friends = total cost

Which would give us (8 + x) * 5 = 62.5

Solve for x.

8 + x = 12.5 {divide each side by 5}

x = 12.5 - 8

x = 4.5

Each small bag of popcorn costs $4.50.

hope this helps!

The equation representing the given situation is 40 + 5x = 62.50 and the price of a small bag of popcorn will be $ 4.5. Option C is correct.

What is the equation?

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, five buddies each pay $8 for a ticket to the matinee. Additionally, they each buy a little bag of popcorn. The pals spend $62.50 altogether.

Suppose x represent the price of a small bag of popcorn.

(cost of ticket + cost of popcorn) × number of friends = total cost

⇒ (8 + x) 5 = 62.5

Simplify the equation to obtain the value of x as

⇒  (8 + x) = 62.5/5

⇒ 8 + x = 12.5

⇒ x = 12.5 - 8

⇒ x = 4.5

Thus, the equation representing the given situation is 40 + 5x = 62.50 and the price of a small bag of popcorn will be $ 4.5. Option C is correct. Option C is correct.

Learn more about the equation here,

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4 painters can paint a room in 6 hours how long will it take 3 painters to paint the same room

Answers

Answer:

the answer is that it will take 3 panters  3.5 hours to pant that room

Step-by-step explanation:

The number of hours taken by the painter to paint the room will be 4.5 hours .

Given,

4 painters can paint a room in 6 hours .

Now according to the method of unitary,

If 4 painters can paint the room in 6 hours ,

Then

1 painter will paint the room in

6/4 hours

= 3/2 hours .

Now the number of painters are 3

So if 1 painter paints the room in 3/2 hours then,

3 painters will paint the room in

3*3/2

= 4.5 hours

Thus the number of hours required are 4.5 hours .

Know more about unitary method,

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Liam is riding his bike at a rate of 7 miles per hour. He wants to beat his own-day riding record. To do so, he has to ride more than 32 miles. He's already ridden 4 miles.

What statement describes how many more hours liam must ride his bike to beat his record?

A. he must ride no more than 5 hours.
B. he must ride no less than 5 more hours.
C. he must ride more than 4 more hours.
D. he must ride fewer than 4 more hours.

Answers

Answer:

Im pretty sure the anwer is B.

Step-by-step explanation:

I really hope this helps! I think this is the answer, Have an AWSOME day :)

CHECK ALL OF THE ONES THAT APPLY AS CORRECT ANSWERS!!! NOT JUST ONE!!!

Four points are graphed in the diagram. Which correctly describe the distances between the points in the graph? Check all that apply.


A coordinate plane with 4 points graphed. Point P is negative 2, 3. Point Q is 4, eleven. Point R is twelve, 3. Point S is 9, negative 1.


( ) PQ = 8



( ) PQ = 10



( ) QS = 12



( ) QS = 13



( ) SR = 5



( ) SR = 6

Answers

Answer:

PQ; 8

QS; 12

SR;5

Step-by-step explanation:

lmk if this is right

Answer:

B) PQ = 10

D) QS = 13

E) SR = 5

This is correct, I just did it.

write the numerical expression. The difference between 8 forty-sevens and 7 forty-sevens. Write your answer with no spaces.

Answers

Answer:

47(8)-47(7)

Step-by-step explanation:

Answer:

Hope this helps! :)

Step-by-step explanation:

47(8)-47(7)

Give brainiest if you would like :)

Answer my questions please please

Answers

Number 3 is the first circle number 4 is the first circle number 7 true 8 the second circle 5 the first circle and six is the third circle
the answer it’s
3. A
4. A
7. true
8. B
5. A
6. C

Shoppers buy a 12 lb turkey for $15. They want to make a 35% profit on the sale/price of the turkey? how much is it then?

Answers

Answer:

$5.25

Step-by-step explanation:

35% of $15 is $5.25

5.25 since 15$ is 35% of 15$

What is the surface area of this right rectangular prism with dimensions of 6 inches by 4 inches by 12 inches?

Answers

ANSWER: 288 sq inches.

EXPLANATION: Start by making your 6x4x12 prism. Then, take each side piece by piece. 6x12 for the front and back side, 12x4 for the left and right sides, and 6x4 for the top and bottom. Add those 6 answers together, (72+72+48+48+24+24) and you get 288. Im guessing this is sq inches so 288sq inches.

Answer:

288 in

Step-by-step explanation:

If you could help that would be fantastic! Thank you!

Answers

Answer:

A

B

A

Step-by-step explanation:

hope this helps :•D

Miss gourl idek good luck tho

A pyramid has a square base with sides that measure 10cm and a height of 14cm. What is the slant height of the pyramid?
A)17.2 cm
B)14.9 cm
C)13.2 cm
D)12.1 cm

Answers

the answer is A im pretty sure

The solution is,  the slant height of the pyramid is 14.9 meters.

What is Pythagorean theorem?

Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2.

here, we have,

we know that,

The slant height is the height of a triangle making up the base of the pyramid.

We can imagine a right triangle with one leg being a vertical line from the peak of the pyramid going down to the center of the base, and the other leg going from the center of the base to the center of one edge of the base.

And finally, the hypotenuse will join the ends of those 2 lines together and will also be the slant height of the pyramid.

Then we can easily use the Pythagorean theorem to determine the slant height.

So, S = sqrt((10/2)^2 + 14^2)

S = sqrt(5^2 + 14^2)

S = sqrt(25 + 196)

S = sqrt(221)

S = 14.9

So the slant height of the specified pyramid is 14.9 meters.

To learn more on Pythagorean theorem click:

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The ratio of white cars to silver cars at a dealership is 4 to 3. If there are 100 white cars, what would be the total number of silver and white cars at the dealership?

Answers

75 silver cars hope this helps :)
75 silver cars I think

The telephone company offers two billing plans for local calls. Plan 1 charges ​$29 per month for unlimited calls and Plan 2 charges ​$16 per month plus ​$0.04 per call

Answers

i really don’t know the answer good luck
Honestly plan two is better because if you get 100 calls a month it’ll be $4 and 16+4 =20 which is lesser than $29 per month

Hi everyone I really need help please

Answers

Jason spends 3/4 of an hour at the mall
3/4 of an hour at the mall

A piece of equipment is designed to operate between the temperatures of -16 degrees and 98 degrees. What is the range of temperatures?


-82

114

-114

82

Answers

Answer:

82

Step-by-step explanation:

-16 absoulute value is 16, now 98 - |-16| = 82

Answer:

82

Step-by-step explanation:

I'm not to sure though because I'm only in 6th grade. Hope it helps! :) (But I'm accelerated)

Use the distributive property with factoring to find the equivalent expression.
27x + 15y = ? (9x + ? y)
Please help! I don't understand!

Answers

Answer:

3;5

Step-by-step explanation:

One side of the equation is 27x + 15y, the number of the first blank times 9x needs to be 27x, so it has to be 3. And 3 times {blank} y needs to be 15y, so the second blank has to be 5.

Hope this helps! :)

Answer:

27x + 15y = 3(9x + 5y)

Step-by-step explanation:

27x + 15y = ?(9x + ?y)

3 times 9 = 27

so the first ? would be 3

27x + 15y = 3(9x + ?y)

15/3 = 5

so the 2nd ? would be 5

27x + 15y = 3(9x + 5y)

Simplify to check your work.

27x + 15y = 3(9x + 5y)

27x + 15y = 3(9x) + 3(5y)

27x + 15y = 27x + 15y

Given the inequality: x > -4

Would the graph include an open or closed circle?

Answers

Answer:

You would use an open circle.

Step-by-step explanation:

This is because it is not greater than or equal to it is just greater than.

Evaluate each expression for g=10 for both

9-4g+1

20gg + (8-5)

Answers

9-4*10+1= -30
20*10*10+(8-5)= 2003
It is 30for the first one and 2003 for second

i need an answer if its right ill give brainliest im going to be giving many many many brainliest today if u answer my questions right pls help me :)

Answers

Answer:

the differents is that one is -16 and the other is 6  and im lonely

Step-by-step explanation:

It’s -16 and 6 the person above was right

Which equation is a proportion?

1/3 = 1/4
3/4 = 6/9
5/8 = 20/32
7/9= 21/28

Answers

Answer:

C: [tex]\frac{5}{8}=\frac{20}{32}[/tex]

Step-by-step explanation:

None

Answer:

Option C

Step-by-step explanation:

Cross multiply each of the answers

Option C is right because 160 = 160 through cross multiplication

Which of the following is the solution for the inequality below?
3x - 4 < -19

Answers

Answer:

x<-15

Step-by-step explanation:

you add 4 to each side so its 3x<-15 and then divide 3!

Answer:

X < -5

Step-by-step explanation:

3x - 4 < -19

( 3x - 4 ) + 4 < -19 + 4

3x - 4 + 4 < -15

3x < -15

3x/3 < - 15/3

x < - 3.5/3

x < -5

if the price of gas went from $3.499 a gallon to $3.079 a gallon what was the percent change in the price of the gas. was there an increase or decrease​?

Answers

Answer:

The answer is decrease since the number went down.

The percent change should be -12 percent

Answer: decrease

Step-by-step explanation:

There are 11 girls and 14 boys in a 5th-grade class. Of
these students, 6 girls and 9 boys are in the Running Club. What percentage of the students in this class are in the Running Club? (6.5B)

Group of answer choices

A. 60%

B. 75%

C. 80%

Answers

the answer is A , a ratio of 6.5/converted into 60%

Answer:

A

Step-by-step explanation:

function or not a function?

Answers

Answer:

not a function

Step-by-step explanation:

in a function, the x value cannot be repeated

however, the y value can be repeated

Nope that’s not a function hope this helps

PLSS I NEED HELPPPPPPP ASAP 30 points

Answers

Answer:

Both graphs are same. Look:

4x-8y = -24 / -4x

-8y=-24-4x / *-1

8y = 24 + 4x // 8

y = 1/2 x + 3

Step-by-step explanation:

What is 4,771,000,000 in scientific notation?

Answers

Answer:

4.771 × 109 on top

Please help ASAP it’s due in a few minutes.

Answers

Answer:

B is the grams of protein and cups of milk, 0 of each.

Answer:

1 a. The constant of proportionality is 1 cup of milk for every 8 grams of protein

1 b. 0 cups of milk for every 0 grams of protein

1 c. 4 Cups of milk for every 32 grams of protein

2 a. 1 for every 3

2 b. 1 for every 1

Step-by-step explanation:

yee hope this helped

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