Answer:
Step-by-step explanation:
<u>The filling speed is 30 hours or:</u>
<u>The draining speed is 34 hours or: </u>
<u>If both lines are open simultaneously, the filling speed is:</u>
- 1/30 - 1/34 =
- 17/510 - 15/ 510 =
- 2/510 =
- 1/255 in an hour
<u>If the tank is 1/5 full, then we need to fill the 4/5 of level and it will take:</u>
- 4/5 : 1/255 =
- 4/5 *255 =
- 204 hours
17/4 because you have to do 4x4 +1 which equal 17 then make that an improper fraction.
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L = Lea's eggs
<span>C = Chris's eggs </span>
<span>Chris had twice as many eggs as Lea </span>
<span>C = 2L </span>
<span>Chris dropped 6 of his eggs and Lea dropped 2 of hers, and then they had the same number. </span>
<span>C - 6 = L - 2 </span>
<span>two equations, two unknowns, can be solved </span>
<span>sub C = 2L </span>
<span>into </span>
<span>C - 6 = L - 2 </span>
<span>2L - 6 = L - 2 </span>
<span>L = 4 </span>
<span>so C = 8 </span>
<span>verify </span>
<span>C = 2L; twice 4 is 8, OK </span>
<span>C - 6 = L - 2 </span>
<span>8 - 6 is 2 and 4 - 2 is 2, OK </span>
<span>So Lea started with 4 eggs, Chris with 8
Hope this helps
Plz mark as brainlest</span>
Answer:0
Step-by-step explanation:
x-20=35x-20
-20=34x-20
x=0
