Mathematics, 09.03.2021 19:00 Lizzy527663
A newspaper editor typically spends 60 minutes editing each article and edits 32 articles per week. She noticed that if she spends
5 minutes fewer on each article, then she is able to edit 2 more articles each weeky During one week, she spent 1,800 minutes editing.
If x is the number of times she decreased the editing time on each article by 5 minutes, select any equations that can be used
to represent this situation.
(60 - 5x)(32 + 2x) = 1,800
1,920 + 280x - 10x2 = 1,800
(60 + 5x)(32 - 2x) = 1,800
1,920 + 40x + 10x2 = 1,800
(60 - 2x)(32 + 5x) = 1,800
1,920 - 40% - 10x2 = 1,800
Is it possible for her to have edited 36 articles?
No; 36 articles is too few.
No; 36 articles is too many.
Yes; 36 articles is possible.
Answers: 3
Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 22.06.2019 02:00, rayniqueamee2002
Astore is having a sale in which all items are reduced by 20 percent. including tax, jennifer paid $21 for a pair of shorts. if the sales tax is 5 percent, what was the original price of the shorts
Answers: 1
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