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lbvjy [14]
2 years ago
8

One painter can finish a certain job 5 hours before another painter who is doing the same job. When they work together they can

finish this job in 6 hours. How long does it take for each painter to do the job by himself?
Mathematics
1 answer:
Whitepunk [10]2 years ago
5 0

Answer:

A (painter 1) = 10 hours

B (painter 2) = 15 hours

Step-by-step explanation:

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Find each of the following for ​
KATRIN_1 [288]
<h2>Answer:</h2>

(a)

          f(x+ h)=8x+8h+3  

(b)

            f(x+ h)-f(x)=8h          

(c)

             \dfrac{f(x+ h)-f(x)}{h}=8

<h2>Step-by-step explanation:</h2>

We are given a function f(x) as :

              f(x)=8x+3

(a)

           f(x+ h)

We will substitute (x+h) in place of x in the function f(x) as follows:

f(x+h)=8(x+h)+3\\\\i.e.\\\\f(x+h)=8x+8h+3

(b)

       f(x+ h)-f(x)              

Now on subtracting the f(x+h) obtained in part (a) with the function f(x) we have:

f(x+h)-f(x)=8x+8h+3-(8x+3)\\\\i.e.\\\\f(x+h)-f(x)=8x+8h+3-8x-3\\\\i.e.\\\\f(x+h)-f(x)=8h

(c)

           \dfrac{f(x+ h)-f(x)}{h}            

In this part we will divide the numerator expression which is obtained in part (b) by h to get:

           \dfrac{f(x+ h)-f(x)}{h}=\dfrac{8h}{h}\\\\i.e.\\\\\dfrac{f(x+h)-f(x)}{h}=8    

5 0
3 years ago
Solve for this equation:<br> x(x+3)(x+3)=0
Marta_Voda [28]

Answer:

x^3+6x^2+9x

if you are trying to find the original function

if not, and you are trying to find the zeros is

x=-3

x=0

Step-by-step explanation:

multiply x(x+3)

x^2+3x

then multiply that by x+3 and that should give you the answer

6 0
1 year ago
Read 2 more answers
The normal price of a pair of sneakers is $200. This week the pair of sneakers were on sale for only $150. By what percent did t
Eddi Din [679]

Answer:

25%

Step-by-step explanation:

50 is 25% of 200, the price went down by $50

brainliest???

7 0
2 years ago
Read 2 more answers
What is f ( -2) for f f(x) = 1/2 x2
sergij07 [2.7K]
I think 20 ft bc microwaves are cool
7 0
3 years ago
What is 2/3 times 1/4
barxatty [35]
(2/3)(1/4)=
2/12=
1/6
multiply the numerators by the numerators, (top numbers)
and the denominators by the denominators, (bottom numbers)
6 0
3 years ago
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