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
pashok25 [27]
3 years ago
5

a contractor estimates that he can paint a house in 5 days using 6 men. if he actually uses 5 men for the job, how many days wil

l they take to paint the house?
Mathematics
2 answers:
ankoles [38]3 years ago
7 0
It will take 4 days to paint the house with 5 men
sp2606 [1]3 years ago
4 0

1 house = 6 men x 5 days  = 30 man days

Need 30 man days with only 5 men: 30x = 5 men   →  x = 6

It will take 6 days for 5 men to complete the job.

Answer: 6 days


You might be interested in
The measure of one angle is 13 less than five times The measure of another angle. The sum of the measure of the two angles is 14
kodGreya [7K]

\huge\boxed{a=\frac{229}{2};\ \ b=\frac{51}{2}}

<em>In decimal form, a = 114.5; b = 25.5</em>

We will write this as a system of equations, where a and b are the two angles.

\left \{ {{a=5b-13} \atop {a+b=140}} \right

We will use substitution to solve this system. We know what a equals, so we plug that into the second equation.

5b-13+b=140

Combine the like terms.

6b-13=140

Add 13 on both sides.

6b=153

Divide both sides by 6.

b=\frac{153}{6}=\boxed{\frac{51}{2}}

Now just subtract that from 140.

a=140-\frac{51}{2}=\boxed{\frac{229}{2}}

7 0
2 years ago
A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb
ArbitrLikvidat [17]

Answer:

  $9327

Step-by-step explanation:

Apparently, the cost function is supposed to be ...

  C(x) = 0.4x^2 -112x +17167

This can be rewritten to vertex form as ...

  C(x) = 0.4(x^2 -280) +17167

  C(x) = 0.4(x -140)^2 +17167 -0.4(19600)

  C(x) = 0.4(x -140)^2 +9327

The vertex of the cost function is ...

  (x, C(x)) = (140, 9327)

The minimum unit cost is $9327.

_____

<em>Comment on the question</em>

You found the number of units that result in minimum cost (140 units), but you have to evaluate C(140) to find the minimum unit cost.

8 0
2 years ago
Determine whether the equation Y=x^2 +13 represents a linear or non linear function and explain
telo118 [61]

Answer:

yés it is linear because

two variables that gives a straight line when plotted on a graph.

if it was correct tell me good or it was mistake tell me truth

Step-by-step explanation:

hope it was correct

3 0
1 year ago
Which exponential function is graphed here?
jek_recluse [69]

Answer:

y = 5^x

Step-by-step explanation:

y= b*(a)^x + c

c could = 1 but then you would not have an exponential function. c = 0 because the graph follows the x axis up until x = -2. Suppose c = 1. The the graph would follow y = 1 up until x = - 2

When x = 0, y = 1 which means that b. If b is anything but 0 or 1 then the y intercept would be stretched to a different place. If be = 0 then y would = 0.

So the graph is of the form y = a^x

Now when x = 0 the graph, the y intercept is y = a^0  or y = 1 So the y intercept is (0,1)

Now the next point is thing to solve for is a.

When x = 1, y = 5  (read the graph)

y = a^x

5 = a^1

5 = a because a^1 is a.

Answer

y = 5^x.

5 = a^1

4 0
2 years ago
Which of the following describes independent events A and B?
galina1969 [7]
I think it is going to be 3. please let me know if you need more information
4 0
3 years ago
Other questions:
  • Calculate the gradient of (a; b) and (-2a; -2b) where a≠0 and b≠0.
    7·1 answer
  • What is 77,543 rounded to the nearest ten?
    8·2 answers
  • An athlete eats 0.2kg of protein per week while training.how much protein will she eat during 9 weeks of training write answer i
    6·1 answer
  • Who ever gets this question right is BRAINLIEST. Answer For 15 Points
    5·1 answer
  • State the hypothesis and the conclusion in each conditional statement.
    7·1 answer
  • Gsgs helpppp.plssssss​
    12·2 answers
  • How does a plastic fork, whale, hospital and chocolate bar relate with each other?
    5·2 answers
  • Select the best interpretation of the following equation.<br> 11 - y = 3
    15·1 answer
  • Which event is important enough to include in a summary of this
    11·1 answer
  • An angle measures 30° more than the measure of its supplementary angle. What is the measure of each angle?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!