Solve for x and y

1.45 x + 1.55y = 20 and x + y = 29.80

My number rounded to the nearest tenth is 6.4. What might my number be? Justify your answer

Show Work. 1.) 2.4/3.6 = k/1.8 2.) t/0.3 = 1.7/0.9 3.) 7/1.066 = z/9.65 4.) x-3/5 = 6/10 5.) 7/x+9 = 21/36 6.) 10/15 = 4/x-5

Item 7 Question 1 A hanging light cover made of glass is shaped like a square pyramid. The cover does not have a bottom. One square foot of the glass weighs 2.45 pounds. The chain can support 35 pounds. Will the chain support the light cover

uma determinada empresa fabrica materiais escolares, dedicando-se exclusivamente á produção de cadernos, livros e agendas.

Simplify 6 - 3 (4 - 3x) -3x - 6 9x + 18 9x - 6

Find the minimum value of n that guarantees an error of no more than 1/30,000 in approximating integral 1/x dx from 3 to 4 by the Trapezoidal Rule with n equal subintervals.

If a2 = 18 and a4 = 8, find two possible common ratios. Then, write two sequences lhaving five terms each.

Suppose the population of a town is 100,000 in 1999. The population increases at a rate of 4.5% every year. What will be the population of the town in 2005? Round your answer to the nearest whole number.

bob purchased a prepaid phone card for $15. long distance calls cost 18 cents a minute using this card. bob used his card only once to make a long distance call. if the remaining credit on her card is $12.30, how many minutes did her call last?

If you received a 3% raise in 2012 and you made 47,000 in 2011, how much would you make more in 2012