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DiKsa [7]
3 years ago
11

Bob and Ted are in the plumbing business. Bob can do the plumbing hook-up for a new house in 4 hours; Ted does the same job in 6

hours. If they work together, how long will they take to hook up the plumbing in one house? 2.1 hours 2.4 hours 5 hours
Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0

Answer:

2.4 hours

Step-by-step explanation:

Stels [109]3 years ago
5 0
Where 1/4 represents Bob and 1/6 represents Ted...
1/4x + 1/6x = 1
Multiply the two so there is no fraction by the GCF of 12. 
3x + 2x = 12
Add 3x and 2x.
5x = 12
Divide by 5.
x = 12
Plug this value in.
With that, the answer is 2 hours and 24 minutes with x = 12 meaning 144 minutes.
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What is the simple interest earned on an investment of $12,625 in mutual funds for 12 years at a rate of 4%
vfiekz [6]

Answer:

Interest earned= $6,060

Step-by-step explanation:

Giving the following formula:

Principal (P)= $12,625

Interest (r)= 4%= 0.04

Period of time (t)= 12 years

<u>To calculate the interest earned after twelve years, we need to use the following formula:</u>

I= P*r*t

I= (12,625*0.04*12)

I= $6,060

Interest earned= $6,060

3 0
2 years ago
The vertices of a square are located at (0,4), (4,0), (0, -4) and (-4,0).
kozerog [31]
The answer is: (4,0), (0,4)

4 0
2 years ago
.<br> 8.) A can of tennis balls is $4.00 and is 15% off. The sales tax is 6%.<br><br> Help pls
Ostrovityanka [42]

Answer:

$3.64 is the answer I hope it helps

3 0
3 years ago
Read 2 more answers
The graph depicts the growth and costs using of line segment use the midpoint formula to approximate the cost during the year 19
marysya [2.9K]

Answer:

The approximate cost during the year 1987 was $7,533

Step-by-step explanation:

The complete question in the attached figure

we have

y -----> is the cost in dollars

x -----> is the year

Looking at the graph we have the points

(1983,5,047) and (1991, 10,019)

To determine the cost in the year 1987, find out the midpoint between the two given points

The formula to calculate the midpoint between two points is equal to

M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

substitute the values

M=(\frac{1983+1991}{2},\frac{5,047+10,019}{2})

M=(1987,7,533)

therefore

The approximate cost during the year 1987 was $7,533

7 0
3 years ago
What is the value of n?
melamori03 [73]
The answer for this question that needs an answer is n = 5

because 18(n-1) = 9(n+7) implies that 18n - 18 = 9n + 63 which implies that n =5 for the equation to hold true.
6 0
3 years ago
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