標題:
Maths questions 15marks!!!!!!!
發問:
1. The sum of three consectitive numbers is less than 25. Find the range the values of the largest number.2. Solve 2^(x+2) - 2^x =483. The sales of a product in Year 2 exceeded those in Year 1 by 20%, while the sales of the same product in Year 3 exceeded those in Year 2 by 20%. Find the percentage change in... 顯示更多 1. The sum of three consectitive numbers is less than 25. Find the range the values of the largest number. 2. Solve 2^(x+2) - 2^x =48 3. The sales of a product in Year 2 exceeded those in Year 1 by 20%, while the sales of the same product in Year 3 exceeded those in Year 2 by 20%. Find the percentage change in the sales of the product between Year 1 and Year 3. 4. write the following surds in the form √a. a) 4√2 b) 4/3√3 5.Let p= √2and q=√5 a) Express √50 in terms of p. b)Express √20 + √80 in terms of q.
最佳解答:
(1) Let the largest no. be x, then the 3 nos. are x - 2, x - 1 and x. Then, 3x - 3
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