Mrs smalls is sewing a sweater for her grandson. It took her 1/5 hour to sew 2/7 inch. How fast is Mrs smalls sewing speed in in
1 answer:
Answer: 1.4285 inches/hour
Step-by-step explanation: 1/5 of an hour is equal to 20%, or 0.2 hours. 2/7 inch is equal to 0.2857 inches, approximately. If she sews 0,2857 inches in 0,2 hours, we can cross multiply the values we want to discover:
x inches - 1 hour
0.2857 inches - 0.2 hours
Then, 1.4285 inches are sewed in one hour.
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Answer: 32
Step-by-step explanation:
When the set has <em>n</em> elements, the power set has elements. This also gives us the cardinality of the power set, which is what we are looking for.
A = {2,3,9,7,5}
(1) 2
(2) 3
(3) 9
(4) 7
(5) 5
<em>n</em> = 5
32