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Jason and Hilger are required to paint over the graffiti on a wall. If Jason
worked alone, it
would take him 20 h to repaint. Working alone, Hilger could do the job in
15 h. How long
will it take them to do the painting if they work together?

Respuesta :

Answer:Pay attention To school and you will get it right

Step-by-step explanation:

Answer:

8.57

Step-by-step ex

[tex]\frac{1}{20}+ \frac{1}{15} =\frac{1}{t}[/tex]

60t cross out 60 it turns in to 3t and 4t

3t+4t=60

7t=60

t=[tex]\frac{60}{7}[/tex]=8.57rs

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