oddans62 - 23. (a) Let d = the number of dimes q = the...

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Odd-Numbered Answers to Exercise Set 6.2: More Systems and Applications 1. ) 1 , 3 , 2 ( 3. ) 4 , 2 , 3 ( 5. ) 2 , 1 , 1 ( 7. ) 9 , 3 ( and ) 16 , 4 ( 9. ) 1 , 3 ( and ) 1 , 3 ( 11. ) 5 , 2 ( and ) 5 , 2 ( 13. ) 1 , 2 ( 15. (a) Let h = the number of hot dogs s = the number of sodas System of Equations: 22 75 . 1 3 = + s h 9 = + s h (b) Dillan bought 5 hot dogs and 4 sodas. 17. (a) Let x = the first number y = the second number System of Equations: 77 = + y x 13 = y x (b) The two numbers are 45 and 32. 19. (a) Let w = the width of the rectangle l = the length of the rectangle System of Equations: 26 2 2 = + l w 36 = lw (b) The rectangle is 4 cm by 9 cm. 21. (a) Let w = the width of the garden l = the length of the garden System of Equations: 200 2 2 = + l w 56 = l w (b) The length of the garden is 78 feet and the width of the garden is 22 feet.
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Unformatted text preview: 23. (a) Let d = the number of dimes q = the number of quarters System of Equations: 340 25 10 = + q d 16 = + q d (b) Paul has 12 quarters and 4 dimes. 25. (a) Let x = the amount invested in the account yielding 5% interest y = the amount invested in the account yielding 6% interest System of Equations: 139 06 . 05 . = + y x 500 , 2 = + y x (b) Kathy invested $1,100 in the account yielding 5% interest, and $1,400 in the account yielding 6% interest. 27. (a) Let J = the number of emails Jen received A = the number of emails Anthony received System of Equations: 64 = + A J 5 2 = A J (b) Jen received 41 emails, and Anthony received 23 emails....
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