How many pennies would be in a tower that is 10 miles
high?

Answers

Answer 1
Just measure the width (or height, if you'll be stacking the pennies
a mile high) of a penny, then divide 5280 feet by whatever you find.
This is a great activity for a class, and in fact a good way to start
the project. First take one penny, and work out an answer. Then get
100 pennies, and measure them; do the same calculation to see how many
pennies it will take to make a mile. There will probably be a
difference, because you can measure 100 pennies more accurately than a
single penny. Or maybe you have a micrometer that will measure one
penny precisely. Which is better can be a good discussion starter. And
don't forget to try it in metric, too.

Just to illustrate, using a very rough estimate of a penny's width,
let's say a penny is about 3/4 inch wide. The number of pennies in a
mile will be

5280 ft 12 in 1 penny
1 mile * ------- * ----- * ------- = 5280 * 12 * 4/3 pennies
1 mi 1 ft 3/4 in

This gives about 84,480 pennies. (This method of doing calculations
with units is very helpful, and would be worth teaching.)

If we measure 100 pennies as 6 ft 1 in, we will get

5280 ft 100 pennies
1 mile * ------- * ----------- = 5280 * 100 * 12 / 73 pennies
1 mi 6 1/12 ft

This gives us 86794.5205 pennies in a mile.

Related Questions

What is 1 x 10^3 in standard form? Show work of how you did it please :)

Answers

Answer:

1×10^3 = 1000

Step-by-step explanation:

so basically its 1×10×10×10

The standard form of the given scientific notation is 1000.

The given scientific notation is 1×10³.

What is the standard form of a number?

The standard form means the process of writing very large expanded form of a number into small form or small number.

Now, the standard form of 1×10³ is

1×1000

= 1000

Therefore, the standard form of the given scientific notation is 1000.

To learn more about the standard form of a number visit:

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-(2m-7)-(3+4(m+4)) Solve PLZZZZ HURRYY 20 POINTS

Answers

Answer:

-6m-12

Step-by-step explanation:

-(2m-7)-(3+4(m+4)) =

-2m+7-(3+4m+16)=

-2m+7-(19+4m)

-2m+7-19-4m

-6m-12

OR:

-m-2 ( if you divide by 6 as a common factor)

Which relation represents a function?
1) {(0,3),(2,4),(0,6)}
2) {(-7,5),(-7,1),(-10,3), (-4,3)}
3) {(2,0),(6,2),(6,-2)}
4) {(-6,5),(-3,2),(1,2),(6,5)}

Answers

4 bc none of the x axis numbers are the same

17. A man can row at 8 km/hr in still water. If the
river is running at 2 km/hr, it takes him 48
minutes to row to a place and coming back. How
far is the place ?
(a) 1 km
(b) 2 km en
(c) 3 km
(d) 4 km

Answers

Answer:

(c) 3 km

Step-by-step explanation:

Speed in still water: 8 km/h

Speed of river: 2 km/h

Speed downstream: 8 km/h + 2 km/y = 10 km/h

Speed upstream: 8 km/h - 2 km/h = 6 km/h

total time both ways: 48 minutes = 48/60 hour = 0.8 hour

time to go upstream: t

time to go downstream: 0.8 - t

speed = distance/time

s = d/t

d = st

Upstream:

d =  st

d = 6t

Downstream:

d = st

d = 10(0.8 - t)

The distance upstream and downstream is the same.

6t = 10(0.8 - t)

6t = 8 - 10t

16t = 8

t = 0.5

d = 6t = 6(0.5)

d = 3

Answer: (c) 3 km

Solye for x
7(x + 1) = 21

Answers

Answer:

x = 2

Step-by-step explanation:

Given

7(x + 1) = 21 ( divide both sides by 7 )

x + 1 = 3 ( subtract 1 from both sides )

x = 2

Answer:

x=2

Step-by-step explanation:

7×(x +1)=21

7x +7 =21

7x =21 - 7

7x =14

x=14 :7

x=2

7 ×(2 +1)=21

7 ×3 =21

21 =21

can you give me a real-world problem that involves multiplying a fraction and a whole number?

Answers

Answer:

Rishi spent 3/4 of an hour for 2 days working on his science project . kyle spent 1/4 of an hour for 6 days working on his science project. who spent more time working on his science project.

Step-by-step explanation:

rishi and kyle spent the same amount of time.

6/4 and 6/4 hours

Simplify and write your
answer in standard form
5x(-3x + 8) - 4x + 7

Answers

Answer:

-15x^2 + 36x + 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

-15x^2  + 40x - 4x + 7

-15x^2 + 36x + 7

I need helpppp with this question

Answers

Answer: Y = 6 and X = 5

Step-by-step explanation: Im not sure But i think that that your supposed to subtract by 2 so 8 - 2 would equal 6 and then 7-2 equals 5 so yeah

f 4 boxes of apples weigh 75.6 lb, how much do 8.5 boxes of apples weigh?

Answers

Answer:

160.65 lb

Step-by-step explanation:

4*18.9 = 75.6 lb

8.5*18.9 = 160.65 lb

A square garden has an area of 1,600 square feet. How long is each side of
the garden?
16
40
80
160

Answers

Answer:

40

Step-by-step explanation:

why? because 40x40=1600

Hailey makes a necklace with 24 blue beads and 32 purple beads. She wants to make a bracelet that uses the same ratio of blue beads to purple beads. She plans to use 6 blue beads for the bracelet. How many purple beads should Hailey use

Answers

Answer:

8

Step-by-step explanation:

Ratio of blue beads to purple: 24:32

Reduce it using four and it becomes 6:8

Which of the following problems can be represented by the equation below? 5x - 15 = 15x

Answers

Answer:

6

Step-by-step explanation:

5x-15=15x

    +15  +15

5x=30

5/5=1

30/5=6

1=6 or x=6

Your answer to 5x-15=15x is -3/2

Ming made a triangular picture frame out of cardboard. The sides of the frame are 6.75 in., 6.75 in., and 8.375 in. Ming uses the addition below to determine the amount of string she needs to decorate the edges of the frame.

675 + 675 + 8.375 = 9.725. The 675 values are lined up with the 375 portion of 8.375.

Which explains Ming’s error?

Answers

Answer:

She should have included the decimal in 6.75 and aligned the decimal points to add 6.750 + 6.750 + 8.375 = 21.875.

Step-by-step explanation:

6.750

  6.750

+ 8.375

21.875

I hope this helps

Answer:

The answer is A

Step-by-step explanation:

I took the test

Which pair of segments are corresponding parts of the congruent quadrilaterals that are pictured below?

A. AB and WX
B. AB and XY
C. AB and YZ
D. AB and ZW

Hurry please!!!

Answers

Answer:

AB and ZW

Step-by-step explanation:

if you see the marks on the edges of the Square, you see they have different number of marks. if 2 segments are congruent, they will have the same number of marks on the sides. AB and WX have 3 marks on their side

Answer:

The answer is simply d i did the unit review on edge plz mark me brainliest

Step-by-step explanation:

g(a) = a + 2. Find f(-7).

Answers

Answer:

Step-by-step explanation:

g(-7) = -7 + 2 = -5

12 POINTS I NEED SOMEONES HELP BEFORE THIS DAY FINISHES
A town has a population of 2000 and grows at 4% every year. Write an
equation to represent the scenario

Answers

Answer:

2000+ (2000× .04x)

Step-by-step explanation:

2000 people plus the percent that it grows, found by multiplying .04 (4%) by the original number. the x is the number of years

What equation can Janet use to calculate the principal amount? (and please don't just answer try to solve it someone ripped me off, the last time i asked by just typing)

Answers

Answer:

t = [tex]\frac{l}{pr}[/tex]

Step-by-step explanation:

Formula or literal equation used to calculate the simple interest is,

l = prt

where 'l' = Simple interest

p = principle amount invested

r = rate of interest

t = time or duration of the investment

If we have to calculate the time of investment form the given formula,

l = prt

By the division property of equality,

[tex]\frac{l}{pr}=\frac{prt}{pr}[/tex]

[tex]t=\frac{l}{pr}[/tex]

Therefore, formula to be used is, [tex]t=\frac{l}{pr}[/tex]

i dont get this question.

Answers

It is 12 - 2/3 = 18, then solve :)
hope that helps :D

Solve for x.

[tex]3x - 5 = \frac{12 + 4x}{2} [/tex]

x = [?]​

Answers

Answer:

x= 11

Step-by-step explanation:

[tex]3x - 5 = \frac{12 + 4x}{2} [/tex]

Multiply both sides by 2:

2(3x -5)= 12 +4x

Expand:

2(3x) +2(-5)= 12 +4x

6x -10= 12 +4x

Bring all x terms to 1 side, constant to the other:

6x -4x= 10 +12

2x= 22

Divide by 2 on both sides:

x= 22 ÷2

x= 11

6x-10=12+4x
6x-4x=12+10
2x=22
X=11

question 7 pls help i need help pls

Answers

Answer:

112

Step-by-step explanation:

m<pmo + m<qmn = m<pmn 90+22=112

Answer:

112

Step-by-step explanation:

add 90 and 22

1. Diquan bought a shirt for $20 and paid 10% in sales tax. What was total cost of
the shirt

Answers

Answer:

22 dollars

Step-by-step explanation:

20/10=2 dollars + 20= 22

1,221 kids signed up for summer baseball. If the league has 32 teams and split the kids up evenly among the teams, how many kids would be placed on each team? Select the best response from below.

Answers

Answer:

38 kids on each team about.

I am Not 100% sure but I hope this Helps!

So D.

Solve this
equation for m
y = mx + b

Answers

Answer:

m is represented as the slope

Step-by-step explanation:

The answe is the first one

5 (n - 14) =2 (n + 14)​

Answers

Answer:

n= 98/3

Step-by-step explanation:

1. Complete distributive property *5(n-14)* and *2(n+14)*

5n-70=2n+28

2. Subtract 5n from both sides

-70=-3n+28

3. Subtract -70 from both sides

-98=-3n

4. Divide the variable from both sides *-3n*

-98/-3

5. Simplify

98/3

Final Answer:

98/3

1 point
If an original amount was 12 and the new amount is 18, would you describe
this as an increase or decrease? *

Answers

Answer: Increase

Step-by-step explanation: 18 is greater than 12

Increased because 12 is less than 18

Andrea is selling candles for a fundraiser. She spent $50 on supplies for making the candles. She plans to sell the
candles for $10 each. The function of her profit can be modeled by c(x) = 10x - 50. The x represents the number
of candles she makes. She only has enough supplies to make 100 candles. What is the independent variable?

Answers

The independent variable would be the Candles she sells for $10

Neena is listening to a song. It has a consistent beat. She counts 11 beats in
1 seconds. What is the constant of proportionality for the relationship of beats
to minutes? Show your work.

Answers

Answer:

11beats / 1 second = 660 beats /1 minute

What is the missing coefficient?
x2 + 4x
+
2x
x2 + x
please help me​

Answers

6
x^2 + 6x since 4x + 2x = 6x

Ben’s age, x, is 3 times his age 12 years ago. Finish the equation, using no spaces

Answers

Given :

Ben's age x is 3 times his age 12 years ago.

To Find :

The  current age of Ben.

Solution :

It is given that current age of Ben is x.

So, his age 12 years ago is (x - 12).

Expressing given condition mathematically , we get :

[tex]x=3(x-12)\\\\x=3x-36\\\\2x=36\\\\x=18\ years[/tex]

Therefore, current age of Ben is 18 years.

Hence, this is the required solution.

If x represents a number then write an expression for a number that is three more than one third the value of x

Answers

Answer:

1/3x+3

It is asking for 1/3 of x which is 1/3x

three more essentially means add 3

So 1/3x+3 is the answer

The expression is,

y = 1/3x+3

Where, y is number write with the help of x

And, x is a number.

Here,

We have to write an expression for a number that is three more than one third the value of x.

What is Number system?

A system of writing to express the number is called Number system.

Now,

x represents a number.

Let a number y which is written as, three more than one third the value of x.

One third of x = 1/3 x

Then, more than 3 means to add 3, we get

y = 1/3 x + 3

Hence, The expression is,

y = 1/3x+3

Where, y is number write with the help of x

And, x is a number.

Learn more about the number system visit:

https://brainly.com/question/11966194

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