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
PSYCHO15rus [73]
3 years ago
5

12 men working 8 hours a day complete a piece of work in 10 days to complete a the same work in 8 days working 15 hours a days t

he number of men required is
Mathematics
1 answer:
daser333 [38]3 years ago
5 0

12 men : 8 hours : 10 days


// Find if every man works 1 hour

12 x 8 men : 1 hour : 10 days

96 men : 1 hour : 10 days


//Find if every man works 15 hours

96 ÷ 15 men : 15 hours : 10 days

6.4 men : 15 hours : 10 days


//Find if every man works 1 day

6.4 x 10 men : 15 hours : 1 day

64 men : 15 hours : 1 day


//Find if every man works 8 days

64 ÷ 8 men : 15 hours : 8 days

8 men : 15 hours : 8 days


Answer: 8 men is needed

You might be interested in
What is the estimated perimeter of an ellipse if the major axis has a length of 15 ft and the minor axis has a length of 7.5 ft?
JulsSmile [24]
The answer is 20 feet
4 0
3 years ago
Y = -3x+ 5<br> y = x - 3<br> (-2,-4)<br> (2,-1)<br> an infinite number of solutions
Leno4ka [110]
Your answer is (2,-1)
3 0
2 years ago
Read 2 more answers
Which equation represents the line that is perpendicular to and passes through (-40,20)?
emmasim [6.3K]

The equation of the perpendicular line to the given line is: y = -5/4x - 30.

<h3>What is the Equation of Perpendicular Lines?</h3>

The slope values of two perpendicular lines are negative reciprocal of each other.

Given that the line is perpendicular to y = 4/5x+23, the slope of y = 4/5x+23 is 4/5. Negative reciprocal of 4/5 is -5/4.

Therefore, the line that is perpendicular to it would have a slope (m) of -5/4.

Plug in m = -5/4 and (x, y) = (-40, 20) into y = mx + b to find b:

20 = -5/4(-40) + b

20 = 50 + b

20 - 50 = b

b = -30

Substitute m = -5/4 and b = -30 into y = mx + b:

y = -5/4x - 30

The equation of the perpendicular line is: y = -5/4x - 30.

Learn more about about equation of perpendicular lines on:

brainly.com/question/7098341

#SPJ1

8 0
1 year ago
Which expression represents the inverse of y = 12x - 3
a_sh-v [17]
<span>y = x + 3 / 12
This is your answer.</span>
4 0
3 years ago
Read 2 more answers
An equation is shown below:
IrinaK [193]
5(2x - 8) + 15 = -15
               -15      -15     subtract 15 from each side
5(2x - 8) = -30
  ÷5             ÷5             divide both sides by 5
2x - 8 = -6
     +8    +8                   add 8 to each side
2x=2
÷2  ÷2                          divide both sides by 3
x = 1

Checking:
5(2(1)-8) + 15 = -15
5(-6) + 15 = -15
-30 + 15 = -15
-15 = -15             Correct! x=1
7 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the summation of 3 n plus 2, from n equals 1 to 14..
    9·2 answers
  • A^3b^2 divided by a^-1b^-3
    13·1 answer
  • High school track is shaped as a rectangle with a half circle side. Jake Plans on running four laps. How many meters will Jake r
    10·2 answers
  • In the grid below, points and B have been rotated 90° counterclockwise around the origin.​
    8·1 answer
  • Triangle ABC is similar to triangle FGH.
    6·1 answer
  • Please help answer these math question will give brainless.. :)
    8·1 answer
  • What is the value of X?
    14·1 answer
  • 800 children a day ride on the roller coaster, but another 200 are turned away because they're not tall enough. What proportion
    13·2 answers
  • How can my questions be marked brainliest​
    7·2 answers
  • Identify the explicit formula for the sequence given by the following recursive formula:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!