Math

MTH208 Week 4 exclusive Text book of account Problems scamp 459, #20 compute each(prenominal) carcass by graphing. and To solve graphic entirelyy, we deprivation points on a line. We keister find these by delegate 3 numbers to x and solve for y and therefore flock them into the equation each time to see that they work. strike add-in below for numbers appoint to x which gave us the honor for y. Y=X2x + 3y = 5 X | YX | Y 3 | -2 3 | -0.33 0 | 00 | 1.66 -3| 2-3 | 3.66 knave 461, #70 Solve each trunk by the replacement method. and Plugging in the solutions: Page 461, #92 Investing her reward. Donna graceed her $33,000 bonus and received a make love up of $970 in avocation after champion year. If check of the specie returned 4% and the deviation 2.25%, then how much did she invest at each ordinate? pop out 1 of the capital invested at 4% = x Part 2 of the money invested at 2.25% = y So, $13,000 was invested at 4% and $20,000 was invested at 2.25% Page 471, #52 Solve each system by substitution or addition. 2y x = 3 x = 3y 5 2y-(3y-5)=3 2y-3y+5=3 -y+5=3 -y=3-5 -y=-2 Y=2 So, x=3(2)-5 = x=6-5 = x=1 So, if y=2 and x=1 then 2(2)-1=3 yes 4-1=3. Page 472, #72 Books and magazines.

At Gwens garage sale, all books were one charge, and all magazines were another price. Harriet bought 4 books and three magazines for $1.45, and June bought two books and louver magazines for $1.25. What was the price of a book and what was the price of a magazine. Books = b Magazines = m Henrietta bought 4b + 3m = 1.45 June bought 2b + 5m = 1.25 4b + 3m = 1.45 + -4b - 10m = -2.50 (multiplied by -2 throughout the equation) = 0 7m = -1.05 = m =0.15 If m=0.15 than 2b + 5(0.15) = 1.25 2b + 0.75 = 1.25 2b = 0.50 = b = 0.25 Henrietta bought 4 books for $1.00 and 3 magazines for $0.45 for a thoroughgoing of $1.45 June bought 2 books for...If you want to compensate a full essay, methodicalness it on our website: Ordercustompaper.com

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