if it takes 10 men 10 days to dig a hole how long will it take 5 men to dig a hole that's half as big

Answers

Answer 1

Answer:

10 days

Step-by-step explanation:

It will take 10 men 5 days to dig a hole half as big.

It will take 5 men 10 days to dig a hole half as big.

( Remember, the less people, the more time it will take. )

Answer 2

Answer:

10 men can dig 1 hole in 10 days

How long for 5 men to dig ½ hole?

The ratio to be concerned with is

(number of people / number of holes) =  10 days

5 people digging  ½ hole will take 10 days.

Go here: http://www.1728.org/puzzle.htm

See puzzle #3

Step-by-step explanation:


Related Questions

Find the 13th term of the geometric sequence 4,-8,16

Answers

Answer:

4, -8, 16

scale factor = x-2

4, -8, 16, -32, 64, -128, 256, -512, 1024, -2048, 4096, -8192, 16384

answer = 16,384

8+ 2/3k-4/15k-1/4
Omg I can never figure this out need help

Answers

Answer:

2/5k + 31/4

Step-by-step explanation:

8+ 2/3k-4/15k-1/4

2/3k - 4/15k + 8 - 1/4

(5)(2/3k) - 4/15k + 8 - 1/4

10/15k - 4/15k + 31/4

6/15k + 31/4

2/5k + 31/4

Pls help me out on this question, Find the sum of this first 8 terms of the Arithmetic Progression. log x, log x2, logx3

Answers

Okie

First find D

In this case it is log x

Now find those terms which are log x, log 2x, log 3x, ….. log 8x
Now add them
You will get log x36 :)

is 16 a natural, whole, integer, rational or irrational number?

Answers

Answer:

16 is a natural, whole and integer

Step-by-step explanation:

16 is a natural, whole and integer

it is not rational or irrational because

rational numbers are written in p/q as well as irrational

natural numbers start from 1 till infinite

whole numbers start from 0 to infinite

integers include all the positive and negative numbers

Examine the graphs. Determine whether each function is discrete, continuous, or neither discrete nor continuous. Then state the domain and range of each function.

Answers

Hey there! I'm happy to help!

Discrete data are data that are usually counted and are represented by points that are not connected by a line.

Continuous data are data that are represented by a straight line.

Our graph has a continuous function because it is made of continuous.

In a function, the domain is all of the x-values and the range is all of the y-values.

With discrete data, the domain and range are usually more finite, and with continuous data, it is usually infinite.

What x-values on this graph include any possible number. If we follow the arrow on the bottom left side of our line, it will go down forever and go in the direction of infinitely many negative x-values. The same goes for the other direction with the other side of our arrow.

So, our domain is going to be -∞ ≤ x ≤ ∞.

If we look at our range, we have the same thing happening. We will have infinite negative y-values and infinitely positive as our arrow goes infinitely in both directions.

So, our range is going to be -∞ ≤ y ≤ ∞.

Have a wonderful day and keep on learning! :D

fraction into the statement 1:50000​

Answers

Answer:

am I supposed to change this to a statement like a sentence then one is to fifty thousand

Can someone please explain how to find the difference -7 - (-8)

Answers

Answer:

1

Step-by-step explanation:

In the equation -7 - (-8), there are two 'minus' signs; we can convert two minus signs into a plus sign according to the 'minus minus equals plus' rule, that would make the equation (-7) + 8 for which the answer is +1.

Answer:

1

Step-by-step explanation:

-7-(-8)

First you should solve the brackets.Remeber (-) minus into (-) equal (+)

therefore;

  -7-(-8)= -7+8

when there is a minus and a plus you should minus the two numbers and put the largest value sign.

therefore;

   -7+8= 1

Hope you understand.If you have any problem just ask me I will solve it.

How do you write a number less than one and one-third in an algebraic expression?

Answers

Step-by-step explanation:

x<1

x<(1/3)

yes this is the answer

The period of a compound pendulum is given by T=2π√(h²+k²/gh) express k in terms of T,h and g​

Answers

Answer:

qss-qvcj-kwr join guys iam bored

A certain forest covers an area of 5000 km². Suppose that each year this area decreases by 5%. What will the area be after 10 years?
Use the calculator provided and round your answer to the nearest square kilometer.

Answers

Answer:

The forest will cover an area of approximately 2994 square kilometers after 10 years.

Step-by-step explanation:

A forest covers an area of 5000 square kilometers. Each year, the area of the forest decreases by 5%. We want to determine its area after 10 years.

We can write an exponential function to represent the situation. The standard exponential function is given by:

[tex]\displaystyle f(x) = a(r)^x[/tex]

Where a is the initial value, r is the rate, and x is the time that has passed (in this case in years).

Since the original area is 5000 square kilometers, let a = 5000.

Each year, the area decreases by 5%. In other words, for each subsequent year, the forest's area will be 100% - 5% = 95% = 0.95 of its previous year. Hence, r = 0.95.

Thus, our function is:

[tex]\displaystyle f(x) = 5000(0.95)^x[/tex]

Then after 10 years (x = 10), the area will be:

[tex]\displaystyle f(10) = 5000(0.95)^{(10)}= 2993.6846...\approx 2994\text{ km}^2[/tex]

In conclusion, the forest will cover an area of approximately 2994 square kilometers after 10 years.

Determine the largest integer value of xx in the solution of the following inequality.[tex]2x-2\leq 11[/tex]

Answers

Answer:

6

Step-by-step explanation:

Add 2 to both sides, then divide both sides by 2.

[tex]2x \leq 13 \\x \leq 13/2[/tex]

x is less than or equal to 13/2, So the largest value is 13/2, or 6.5. Meaning the largest integer value is 6

Z= 1+2x,for x
Immediate help pls

Answers

Answer:

Z/2-1/2=x

Step-by-step explanation:

Z=1+2x

subtract 1 from both sides

Z-1=2x

divide both sides by 2

Z/2-1/2=x

Answer:

x= z-1/2 is the solution. thank you

Please help quick I still can’t figure it out

Answers

Step-by-step explanation:

3+21+7+3+21+7

I will give brainlist to whoever will do this for me and I will help with anything you need

Answers

I think it’s
1) (6, 0)
2) (3, 4)
3) (2, 3)
4) (1, 8)
5) (3, 4)
6) (5, 7)

Someone help please.

Answers

Answer:

Translation (the +5)

Dilation (the x 4)

Compression (the 3 to 1/3, and the x to 2-x)

Step-by-step explanation:

Brainliest, please!

Ari lives 4/5 of a mile from the park she has already walked 3/4 of the way to the park. How far has ari walked

Answers

3/4 of 4/5 = 3/4 x 4/5 = 12/20 = 3/5 of a mile (= 1056 yards)

A skier is trying to decide whether or not to buy a season ski pass. A daily pass costs ​$77. A season ski pass costs ​$450. The skier would have to rent skis with either pass for ​$20 per day. How many days would the skier have to go skiing in order to make the season pass less expensive than the daily​ passes?

Answers

Answer:

5

Step-by-step explanation:

Given:

Daily pass = $77Season ski pass = $450Skis = 20

77 + 20 = 97

450 + 20 = 470

Keep multiplying 97 with random numbers until it passes 470.

97 × 4 = 388

97 × 5 = 485

So, the skier will have to pay daily passes 5 times to be more expensive than the season pass.

Hope this helped.

(10-1)(10-2)(10-3)(10-10)

Answers

Answer:

0

Step-by-step explanation:

(10-1=9)(10-2=8)(10-3=7)(10-10=0)

9*8*7*0=0

jordan cooked a 16 1/5 pound turkey in 5 2/5 hours. How many minutes per pound did it take to cook the turkey?

Answers

Answer:20 minutes per pound

we know that

To find the unit rate divide the total time by the total weight

Convert mixed number to an improper fraction

Convert hours to minutes

so

Find the unit rate

therefore

20 minutes per pound

what is the constant of the proportionality in the equation y = 7x

Answers

Answer:

7

Step-by-step explanation:

The equation of direction variation is

y = kx where k is the constant of variation

y = 7x  so 7 is the constant of variation

Answer:

7

Step-by-step explanation:

The equation of direction variation:-  

y = kx where k is the constant of variation -> Eq 1  

y = 7x  -> Eq 2

Comparing Eq 1 and Eq 2,

k=7

HOW MANY DEGREES IN A SUPPLEMENTARY ANGLE???

Answers

Answer:

180 degrees

Step-by-step explanation:

There are 180 degrees in a supplementary angle (straight line)

simplify simplify simplify simplify

Answers

[tex]\boxed{\sf a^m\times a^n=a^{m+n}}[/tex]

[tex]\boxed{\sf a^m\div a^n=a^{m-n}}[/tex]

[tex]\\ \sf\longmapsto 3^{-6}\times( 3^4\div 3^0)^2[/tex]

[tex]\\ \sf\longmapsto 3^{-6}\times (3^{4-0})^2[/tex]

[tex]\\ \sf\longmapsto 3^{-6}\times 3^{4(2)}[/tex]

[tex]\\ \sf\longmapsto 3^{-6}\times 3^8[/tex]

[tex]\\ \sf\longmapsto 3^{-6+8}[/tex]

[tex]\\ \sf\longmapsto 3^2[/tex]

Answer:

[tex] {3}^{2} [/tex]

Step-by-step explanation:

[tex] {3}^{ - 6} \times ( {3}^{4} \div {3}^{0} {)}^{2} [/tex]

[tex] {3}^{4} \div {3}^{0} = {3}^{4 + 0} = {3}^{4} [/tex]

[tex] {3}^{ - 6} \times ( {3}^{4} {)}^{2} [/tex]

[tex]( {3}^{4} {)}^{2} = {3}^{4 \times 2} = {3}^{8} [/tex]

[tex] {3}^{ - 6} \times {3}^{8} = {3}^{ - 6 + 8} = {3}^{2} [/tex]

[tex] \boxed{\green{= {3}^{2} }}[/tex]

Someone help me please

Answers

Answer:

option a

Step-by-step explanation:

all positive real numbers

EXTRA POINTS MARKING BRAINLIEST!!!

ABCD is a parallelogram prove CDB=CAB and <ABD=<ABD​

Answers

2x-5y+7z=6

x-3y+4z=3

3x-8y+11z=11

4. Your first six-month auto insurance premium was $729.00. Based on your good
driving record, your renewal premium is $648.81. What percent decrease did you see
in your premium? (2 points)
I

Answers

Answer: 11%

Step-by-step explanation:

729-648.81=80.10

What percent is 80.10 of 729

%/100 = is/of (this may help you)

X/100 = 80.10/729 (cross multiplication)

(80.19*100)/729 =

11%

If 2x - 4= 16 for some value of x, then
what is the value of x + 2 for the same
value of x?

Answers

Answer:

12

Step-by-step explanation:

2x - 4= 16

Divide by 2

2x/2 -4/2 = 16/2

x -2 = 8

Add 4 to each side

x-2+4 = 8+4

x+2 = 12

Final Answer: 12
Step 1:
2x - 4 = 16
+4 = +4
2x = 20
2x/2 = 20/2
x = 10

Step 2:
x + 2
10 + 2 = 12

So your answer is 12.

Robert is buying tickets to a basketball game. Adult tickets cost $4 more than student tickets. He bought 5 adult tickets and 7 student tickets for a total of $104. How much does a student ticket cost?

Answers

Adult tickets cost $4 more than student tickets, if you know that Robert bought 5, then you can multiply 5x4. You can then subtract those $20 from the total of $104, which would bring you to a total of $84. Then you can add the the 5 adult tickets to the 7 student tickets, which would give you a total of 12 tickets. You can then do 84/12= 7 since the cost of every ticket is now equal. Add 4 to the 7 for the cost of the adult ticket. You now have $11 as the cost of an adult ticket and $7 as the cost of a student ticket. Plug everything in to 5a + 7s = 104 if you want to verify the answers. ( a=adult, s=student)

7. You are on a field trip. You have to travel 73 miles to reach
your destination. You have traveled 29 miles so far. How
much further do you have to travel?
10 marbles.

Answers

Answer:

44

Step-by-step explanation:

Take the miles you already traveled and subtract it from the total.

73-29=44

The measure of an angle is 87°. What is the measure of its supplementary angle?

Answers

Answer:

180-87 = 93

Step-by-step explanation:

supplementary angles add up to 180°

so (the other angle + 87)=180°

other angle =180-87=93°

Answer:

93 degrees

Step-by-step explanation:

Supplementary angles add up to 180 degrees. Therefore, the equation for finding the supplementary angle to 87 would be:

[tex]87 + x = 180\\x=180-87\\x=93[/tex]

Have a nice day. Feel free to ask questions. Spread the love.

Prove cot(− θ) =− cot(θ)

Answers

Step-by-step explanation:

steps are in the picture.

Note:If you need to ask question about it ,i can make you understand.thanks

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