Step-by-step explanation:
first factorise the denominator
. Cho S là ngoại diên của khái niệm con người, p(x,y) = x yêu thương y.
1 answer:
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Answer:
Step-by-step explanation:
From the question, Diana wants her total bill to be less than $50.
Diana pays a fixed monthly bill of
$39 for her mobile phone and an additional
$0.15 per minute for phone internet service.
The bill Diana pays for m minutes of using the internet is $0.15m in a month.
The total monthly bill becomes,
The maximum bill she wants to pay is $50.
This inequality can be solved to determine the number of available minutes.
She can use 12 jewels for each pair of jeans. In fact, using 12 jewels per jeans implies that she will use jewels. The two remaining jewels can't be used on any pair of jeans, otherwise she wouldn't use the same number of jewels for each jeans.
This derives from the fact that, if you divide 50 by 4, you get a result of 12 with a remainder of 2.