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vesna_86 [32]
3 years ago
13

A contractor decides that he can build a house in eight weeks using 5 men. If he employs 3 more men, how long will the job take?

Assume that all the men work at the same rate. ​
Mathematics
1 answer:
Daniel [21]3 years ago
7 0
The answer is 5 weeks
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Suppose we want to choose colors, without replacement, from the colors red, blue, green, and purple.
DerKrebs [107]

The number of ways when the choice is not relevant is 4

<h3>How to determine the number of ways?</h3>

The number of colors are:

Colors, n = 4

The color to choose are:

r = 3

<u>Relevant choice</u>

When the choice is relevant, we have:

Ways = ^nP_r

This gives

Ways = ^4P_3

Evaluate

Ways = 24

Hence, the number of ways when the choice is relevant is 24

<u>Not relevant choice</u>

When the choice is not relevant, we have:

Ways = ^nC_r

This gives

Ways = ^4C_3

Evaluate

Ways = 4

Hence, the number of ways when the choice is not relevant is 4

Read more about combination at:

brainly.com/question/11732255

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4 0
2 years ago
Bill wants to rent a car.Rental Company A charges $35 per day plus $0.10 per mile driven.Rental Company B charges $25 per day pl
zlopas [31]

Answer:

m = 200 miles

Step-by-step explanation:

Rental Co. A:  A(m) = $35 + ($0.10/mile)(m), where m is the number of miles driven

Rental Co. B:  B(m) = $25 + ($0.15/mile)(m)

Set these two dollar amounts equal to each other and solve for m:

$25 + ($0.15/mile)m = $35 + ($0.10/mile)(m).  Combine like terms, obtaining:

($0.05/mile)m = $10; then m = ($10) / ($0.05/mile), or 200 miles.

The price charged by the two companies would be the same when the car has been driven 200 miles.

7 0
3 years ago
If 343x=49^4-x What is the value of x ?
Slav-nsk [51]

Answer:

If It was a Fraction it'd be 8/5

Step-by-step explanation:

3 0
3 years ago
338.08=8(0.07m+28.90+.30(28.90)
AlladinOne [14]

Answer:

m= - 396.253089

Step-by-step explanation:

hope this helps

5 0
2 years ago
Please help don’t understand
Morgarella [4.7K]

Answer:

r = 4

Step-by-step explanation:

If we clearly observe a point and the slope of the line are given.

Point=(5, -6)   slope= -5

We know that the equation of the line having slope m and passing through point (x_{1} , y_{1})  is

y-y_{1}=m(x-x_{1})

Now the equation of the line is y-(-6)=(-5)*(x-5)

y+6=-5x+25

5x+y=19

Now given that (3,r) lies on this line

5*3+r=19

r = 4

6 0
3 years ago
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