(40 POINTS) (NOW) Karlson can paint a room 4 times faster than Justin can. If they work together, they can complete the job in 3 hours. How long would it take for Justin to complete this job on his own.

its 20 points ahha but idc the answer is 1 hour, it would take him 1 hour

Step-by-step explanation:

karson paint 4 times faster, is the amount is 3 hours , you subtract 4-3= 1

so it would take him 1 hour!

step-by-step explanation:

your mom

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.