1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garik1379 [7]
3 years ago
11

If 10 men can complete a piece of work in 30 days how many men are requiredto complete the same job in 25 days?

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0
We must assume that all workmen work at the same rate, and keep it up forever.

More men ==> fewer days

so the proportion is:    30/25 = x/10

Cross-multiply the proportion:

300 = 25 x

Divide each side by 25 :

x = 300/25 = <u>12 men</u>
You might be interested in
If twice a​ number, added to 3 is divided by the number plus 7​, the result is five thirds. Find the number.
Alina [70]

Answer: 26

Step-by-step explanation:

Let the number be n.

Now,

twice a​ number =>> 2n

added to 3 =>> 2n + 3

is divided by the number plus 7 is five thirds =>> (2n + 3) / (n + 7) = 5 / 3

(2n + 3) = (5 / 3) × (n + 7)

3 × (2n + 3) = 5 × (n + 7)

6n+9 = 5n + 35

6n - 5n = 35 - 9

n = 26

5 0
4 years ago
Identify whether the given numbers are perfect squares, perfect cubes, or neither.
Anna [14]
8- perfect cube. 2×2×2=8
9-perfect square. 3×3=9
21- neither.
27- perfect cube. 3×3×3=27
1331- perfect cube. 11×11×11=1331
1332- neither
100- perfect square. 10×10=100
1000- perfect cube. 10×10×10=1000
126- neither
125- perfect cube. 5×5×5=125
25-perfect square. 5×5=25
81-perfect square. 9×9=81
5 0
3 years ago
What is the probability that the sample mean life span of 64 calculators from Caseo will exceed the sample mean life span of 81
musickatia [10]

Answer:

it would be 64-81  than answer devide by 6.

8 0
3 years ago
Solve the inequality |* +31 &lt; |2x + 1.<br> |x+3|&lt;|2x+1|
Kisachek [45]

Answer:

Step-by-step explanation:

Here are the steps to follow when solving absolute value inequalities:

Isolate the absolute value expression on the left side of the inequality.

If the number on the other side of the inequality sign is negative, your equation either has no solution or all real numbers as solutions.

If your problem has a greater than sign (your problem now says that an absolute value is greater than a number), then set up an "or" compound inequality that looks like this:

(quantity inside absolute value) < -(number on other side)

OR

(quantity inside absolute value) > (number on other side)

The same setup is used for a ³ sign.

If your absolute value is less than a number, then set up a three-part compound inequality that looks like this:

-(number on other side) < (quantity inside absolute value) < (number on other side)

The same setup is used for a £ sign

7 0
4 years ago
Use the diagram below to name the following
Mrrafil [7]
1. Line a and line b
2. Segment VX and segment YZ
3. Ray WY and Ray WZ
4. Angle YWV and Angle XWZ
5. Plane D and Plane VWX
6 0
3 years ago
Other questions:
  • Jenny plans to have two children but doesn't know if they are boy-boy, girl-girl, or boy-girl. What is the probability that she
    10·2 answers
  • Please &amp; thankssssss
    8·1 answer
  • Store has a price of $99 on an mp3 player. Store 2 is offering the same mp3 player at a sale price of 25% off their regular pric
    6·1 answer
  • How? Please Help me ! And I will help others too
    7·2 answers
  • Suppose you had a population of fish whose lengths were normally distributed with a mean of 50 centimeters and a standard deviat
    11·1 answer
  • Shopper bought a 12-pound bag of oranges for $18.72. How much did it cost per pound? <br> PLZ HELP
    10·1 answer
  • A cooler contains 4 L of water. The cooler has marks on it at every 0.2 L. Water bottles are filled with water from the cooler,
    12·1 answer
  • Determine the slope of the line that passes through the following coordinates: (2,-1) and (3, 1)
    10·1 answer
  • A shop makes a profit of £2 750 in March
    15·1 answer
  • What is the quotient 6x3+2x2−xx
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!