David can unload a delivery truck in 20 min.Allie can unload the same delivery truck in 35 min.if they work together,how long wi
ll the unloading take?
1 answer:
Answer: 12.7 minutes
Step-by-step explanation:
1/20 + 1/35 =1
35t + 20t/20 x35 =1
55t/700=1
55t=700
700/55=12.7
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I hope this helps and that you have a wonderful day ^‿^
1. 5/y=2/3x +3
2. y= 7/1-4
3. y=2/5x8
4. y=-3/4 +1 I could be wrong but I think this is right
