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Most Missed Consecutive, Perimeter, Verbal Phrases

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1. create online tests A number doubled is 4 fewer than 10 times that number.
2 %2b n = n - 10, 2n = 4 - 10n, 2 %2b 2 = 4n - 10 , 2n = 10n - 4
2. twice the sum of a number and 3 gives the difference of half that number and 4
2n %2b 3 = (1/2)n - 4, 2 ( n %2b 3) = (1/2)n -4 , 3n(2)= 1/2(n-4), 2n %2b 3 = 4 - (1/2)n
3. There are three consecutive integers. 3 times the first is 13 more than twice the second.
3n %2b 1 = 13 %2b 2n %2b 2, 3n= (n %2b2) %2b 13, 3n = 2(n%2b1) %2b 13, 3n = 13 %2b 2n %2b 1
4. Three consecutive integers. The largest tripled decreased by 20 is 70 less than the smallest times 5.
3(n %2b 2) - 20 = 5n - 70, 3(n %2b 3) = 70 - 5n , 3n %2b 2 - 20 = 5n - 70, 3n%2b3= 70-5n
5. one third of a number is twice that number
(1/3)n = n %2b 2, (n/3) = 2n, (1/3) %2b n = 2n, (1/3n)=2n
6. 8 less than a number is the thrice that number.
8-n = 3n , n - 8 = 3n , 8 - n = 3 %2b n , 8 - n = n - 3
7. 40 percent of a number is the difference of the number squared and 10
40n = n^2 %2b 10 , .40n = n^2 %2b 10 , .4n = n^2 - 10, .40n = 2n - 10
8. 5 fewer than a number cubed is 2%25 of that number plus 9
5 - n^3 = 2n %2b 9 , n^3 - 5 = .02n %2b 9 , 5 - n^3 = .02n %2b 9 , n^3 - 5 = 2n %2b 9
9. a quarter of a number times itself is 8 less than half of the same number.
25n^2 = 8 - (1/2)n , (n^2/4)= 8 - (1/2)n , .25n = 8 - (n/2) , (n^2/4) = (n/2) - 8