Consider this option:
1. according to the first condition 45 min for 4 p. 5 walls, it means that: n*a*t=w, where n-numbers of people, a- ability of one person and w-numbers of walls.
4a*45=5, a=1/36 - ability for one person.
2. according the second condition for 6 people and 4 walls:
6*1/36*t=4, ⇒ t=24 minutes.
answer: 24 min.
If it is possible check the arithmetic part.
Answer:
AD = 44 and angle CAB = 90 degrees
Step-by-step explanation:
since the shape is a rectangle, all corner angles must be 90 degrees. so CAB is also 90 degrees.
the length of half of BC is 22, so the full length of BC is 44. using symmetry, AD should also be 44.
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3 days. If every day he runs 10 laps then that would be 4000 meters. 1 kilometer is equal to 1000 meters. That means everyday he runs 4 kilometers. Then after 3 days he would have ran 12 kilometers.
if the value of X is 14 then the value of y is 21