a certain job can be done in 20 hours by 4 people. how many people are needed to do the same job in 10 hours?

Answers

Answer 1
If it takes 4 people to get a job done in 20 hours, then in 10 hours, it will take 2 people to complete the same job.
To find out how many people are needed to do this job in 10 hours, we can see that we got to 10 hours by dividing 20 by two so, to see how many people are needed to complete this same job in ten hours, we would just divide 4 people by 2 which is 2 people.
So, in conclusion, if it takes a certain job to be done in 20 hours by 4 people, then it would take 10 hours for that same job to be completed by 2 people.
Glad I could help!

Related Questions

Which graph has a y-intercept of -1/2?

Answers

Answer:

C.

Step-by-step explanation:

Y-intercept basically means where on the graph does the line "cut" through the y-axis (the vertical line). In the graphs, there is only one line which cuts through the y-axis at -1/2, which is C. .

Find the slope of the line passing through points -2, 2 and 2, 0

Answers

Explanation

We can find the slope by using the slope formula. Also know rise over run.

[tex] \large \bold{m = \frac{rise}{run} }[/tex]

[tex]m = \frac{2 - 0}{ - 2 - 2} \\ m = \frac{2}{ - 4} \\ m = - \frac{1}{2} [/tex]

From the slope-intercept y = mx+b.

[tex] \large \bold {m = slope } \\ \large \bold {b = y - intercept }[/tex]

Answer

[tex] \large \boxed { - \frac{1}{2} }[/tex]

Answer:

-1/2

Step-by-step explanation:

Going from (-2, 2) to (2, 0), x (the run) increases by 4 and y (the rise) decreases by 2.  Thus, the slope of this line is m = rise / run = -2/4 = -1/2.


Mario's plumbing service
Charges $40 to make a house
Call plus $25 an hour.
y=40+25h
Fill in the chart

Answers

Answer:

So, hour 0 and charge is 0. hour 1 is 25, hour 2 is 50, hour 3 is 75, hour 4 is 100 and hour 5 is 125

Step-by-step explanation:

For every hour, add 25 in each box.

Paulo sells 249 medium pumpkins for $8 each and 84 large pumpkins for $14 each. How much money does Paulo collect selling the medium and the large pumpkins

Answers

Answer:  $3,168

Step-by-step explanation:

Paulo sells 249 medium pumpkins for $8 each. The money Paulo makes from this is:

= 249 * 8

= $1,992

Paulo also sells 84 large pumpkins for $14. The money made is:

= $1,176

Total from selling both is:

= 1,992 + 1,176

= $3,168

help please ASAP super hard

Answers

Answer:

B.

Step-by-step explanation:

can somone answer this please

Answers

Answer:

4

7

6

9

Step-by-step explanation:

plz brainliestt

james is in charge of the decorations. he hs a total budget of $50 to spend for all of the decorations. james spends $20 on one banner and would like to buy balloons that cost $2 each with the rest of the money. Write an equation to represent the situation.


How many balloons can james buy?

Answers

He can buy 15 balloons

His budget (amount of money he can spend) is $50. If he spent $20 on the banner, that means he has $30 left. He wants to spend the rest on balloons $2 each. Simply- 30 divided by 2 which is 15

Classify the triangles based on whether they are right triangles.?

Answers

Answer:

The 1st, 4th, and 5th triangles are right triangles

Step-by-step explanation:

Right triangles always have a key characteristic. They all have an angle of 90 degrees. Keep an eye out for that.

write an expression that is equivalent to 3/4 a + 2/3 - 1/2 a - 1/3 + 1/2 a​

Answers

Hi there is this 0pp called Math-way that will help

8a-9÷3 if a=7/8
its algebra i need help

Answers

Answer:

4

Step-by-step explanation:

Plug 7/8 into a.

8(7/8)-9/3  Multiply.

7-9/3           Divide.

7-3              Subtract.

4

Hope this helps!! Have a great day! (。・∀・)ノ゙

3. Frank is considering two cell phone plans. The first company charges $120 for the
phone and $30 per month for the calling plan that Juan wants. The second company
charges $40 for the same phone but charges $45 per month for the calling plan that
Juan wants. After how many months would the total cost of the two plans be the same?
Representations:
Equations:

Answers

Answer:

5.333 months

Step-by-step explanation:

Company A: 120+30x

Company B: 40+ 45x

120+30x=40+45x

80=15x

80/15=x

5.33333=x

Q
A rectangular field is 16m broad
and the ratio of the length and
find the length of the field
breadth is 3:2.
Find the length of the field​

Answers

7.3 is your answer my guy

what is 246 588 rounded to the ten thousands place

Answers

9514 1404 393

Answer:

  250,000

Step-by-step explanation:

The thousands digit is more than 4, so the ten-thousands digit is increased by 1 before digits to its right are replaced by zeros. The rounded number is ...

  250,000

The fence around a circular garden is 18 feet long. What is the area of the garden to the nearest square foot? Use 3.14 for pi.
____square feet​

Answers

Answer:

26

Show Your Work:

Answer:

26 sq.ft.

Step-by-step explanation:

i did the diagnostic

Maria makes a fruit salad.
The table shows the amounts of different kinds of fruit that she uses.
Kind of Fruit Amount
Grapes 323 cups
Melon 214 cups
Pineapple 234 cups
Strawberries ?
The amount of strawberries that Maria uses is 38 times the amount of the other fruits combined.
How many cups of strawberries does Maria use?

Answers

Answer:

If my calculations are correct it would be 6,168 cups of strawberries

Step-by-step explanation:

If it’s 8 times the amount of them combined then you add all of the other fruit together and then multiply by 8 giving you:

323+214+234=771

771*8=6,168 cups of strawberries.

Only in math would someone need that much fruit

Which is greater, 76% or 0.67?

Answers

Answer:

76%

Step-by-step explanation:

76% is 0.76

So it's is greater than 0.67

76%>0.67

solve 6 (3x/2-4) =30

Answers

solve 6 (3x/2-4) =30

ANSWER

[tex]x = - \frac{10}{3} [/tex]

EXPLANATION

[tex] - 9x = 30[/tex]

[tex]9x = - 30[/tex]

[tex]x = - \frac{10}{3} [/tex]

HopeItHelps you

pls answer asap pls pls​

Answers

your answer is b and c :)

Answer:

A

Hindi po ako sigurado po ahhhh

From 24 to 30 teachers

Answers

Well the answer could be 24, 25, 26, 27, 28, 29, 30

Are these triangles similar?

Answers

Not similar is correct

Answer:Similar yes, AA similarity

Step-by-step explanation

WEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

1/6y^4

Step-by-step explanation:

sorry if I'm wrong

could you please help me if you know how to do this

Answers

Answer:

In the first one, 4 is multiplied by c. In the second one, 1/4 is multiplied by c.

Step-by-step explanation:

Which ordered pair is in the solution set of y> 2x + 3?
a.(1,4)
b.(3,2)
c.(0,5)
d.(0,0)

Answers

A because if you do the math correctly you’ll know
i agree I think it is A
Hope this helps

are 7x and 3+ like terms that you can combine?

Answers

No they both aren’t like terms

Answer:

no

Step-by-step explanation:

Because the term behind the 7 is a x, but the 3 only has a plus sign. If both numbers had a x, then yes

Hope this Helps!!!

At basketball camp, Kylie made 18% of her free throws. Based on this information, which is the best prediction of the number of free throws she will make out of 50 attempts?

Answers

Answer:

whn you do 18% of 50, you get 9 freethrows

The plastic cylinder has a diameter of 2 cm. There is a rectangular 0.6 cm square prism through the middle of the cylinder, extending from the top to the bottom. The height of the cylinder is 6 cm. Find the volume of the cylinder without the prism.

Answers

Answer:

73.2 cm³

Step-by-step explanation:

The volume of the cylinder without the prism is V" = volume of cylinder, V' - volume of rectangular prism, V

Volume of cylinder = πr²h where r = radius of cylinder = 2 cm and h = height of cylinder = 6 cm.

So, V = πr²h

= π(2 cm)²(6 cm)

= π × 4 cm² × 6 cm

= 24π cm³

= 75.4 cm³

V = volume of rectangular prism = Area of 0.6 cm square × height = L²h where L = 0.6 cm and h = height of rectangular prism = 6 cm.

So, V = L²h = (0.6 cm)² × 6 cm = 2.16 cm³

volume of the cylinder without the prism is V" = V' - V

= 75.4 cm³ - 2.16 cm³

= 73.24 cm³

≅  73.2 cm³

Answer:

Not an answer

Step-by-step explanation:

Tatiana is buying b number of books and m number of magazines at the book fair. The books cost $4 each and the magazines cost $2 each. Tatiana's total purchase can be shown with this expression: 4b+2m. Which expression is equivalent to 4b + 2m?
A) 6bm
B) 2(2b+2m)
C) 2(2b+ m)
D) 6(b+m)

Answers

Answer:

d

Step-by-step explanation:

Plss which one??

Will mark brainlist

Answers

Answer: the 2nd one maybe

PLZ HELP!

Carmen enters a painting in an art contest. The contest rules say that all paintings must be rectangular, with an area no greater than 3,003.84 cm2. Carmen's painting wins second prize in the contest. The painting that wins first prize has an area that is 1.6 times less than the greatest area the rules allow.

What is the area of the first-prize painting?

Answers

The painting that wins first prize has an area that is 3.2 times smaller than the greatest area. Hence, there is area of 938.45 cm² of first prize painting.

Find x and y so the quadrilateral is a parallelogram.

Answers

Answer:

We conclude that:

The value of x = 7The value of y = 4

Step-by-step explanation:

Given

The parallelogram PQRS

We know that the diagonals of a parallelogram bisect each other.

so

[tex]RT = TP[/tex]

Given

RT = xTP = 5x-28

so substituting RT = x, and TP = 5x-28

[tex]RT = TP[/tex]

[tex]x = 5x-28[/tex]

[tex]5x = x+28[/tex]

[tex]5x-x = 28[/tex]

[tex]4x = 28[/tex]

divide both sides by 4

[tex]4x/4 = 28/4[/tex]

[tex]x = 7[/tex]

Therefore, the value of x:

x = 7

Similarly,

[tex]QT = TS[/tex]

Given

QT = 5yTS = 2y+12

so substituting QT = 5y, and TS = 2y+12

[tex]QT = TS[/tex]

[tex]5y = 2y+12[/tex]

[tex]5y-2y = 12[/tex]

[tex]3y = 12[/tex]

divide both sides by 3

[tex]3y/3 = 12/3[/tex]

[tex]y = 4[/tex]

Therefore, the value of y:

y = 4

Therefore, we conclude that:

The value of x = 7The value of y = 4
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