Answers by Jeff Hubbard
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Answers by Jeff Hubbard

Answers by Jeff Hubbard
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Show that any integer n > 12 can be written as a sum 4r + 5s for some nonnegative integers r, s. (This problem is sometimes called a postage stamp problem. It says that any postage greater than 11 cents
answered Jan 26, 2020
1 vote
92.1k views
What did the factory system lead to the end of
answered Dec 26, 2019
6 votes
94.2k views
A 10% increase in cigarette prices has been found to result in a _____ decrease of smokers
answered Nov 22, 2019
2 votes
123k views
X times x^n Simplify it please and thank you!
answered Aug 19, 2019
4 votes
11.4k views
Nick finished 4/8 of his homework before dinner. Ed finished 7/8 of his homework before dinner. Who finished the greater part of his homework?
answered Mar 3, 2019
4 votes
217k views
What was the main objective of Spain's exploration efforts?
answered Jan 3, 2019
3 votes
161k views
45% of $360 is what as a quantity
answered Nov 11, 2018
2 votes
31.6k views
What Is 0.007 Is 1/10 of
answered Oct 9, 2018
5 votes
76.8k views
From which language does the word opossum originate?
answered Aug 19, 2018
4 votes
8.4k views
A garden hose leak 3/8 gallon of water in 1/4 hour. At this rate how many gallon of water will the hose leak in 1 hour?
answered Mar 6, 2018
1 vote
124k views
Shanti has just joined a DVD rental club. She pays a monthly membership fee of $4.95, and each DVD rental is $1.95. If Shanti's budget for DVD rentals in a month is $42, how many DVDs can Shanti rent in
answered Sep 2, 2017
5 votes
54.7k views
The world-wide sea level has risen 22.75 mm in the past 6.5 years. At this rate, how much higher will the level be 8 years from now?
answered May 6, 2017
2 votes
97.4k views
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