Math

1. In an ordered set of 4 consecutive odd integers, the sum of 3 times the second integer and the greatest integer is 104. Which is the least integer in the set?

Choices: 11, 17, 19, 23, 27


2. How old is David if his age 6 years from now will be twice his age 7 years ago?

3. If the value of n nickels plus d dimes is c cents, what is n in terms of d and c?


Thank you so much! It'll mean a lot to me if you answer all three of these questions!

asked by Lily
  1. 1. Why not just see which one works?
    Try 11. Is (3x13)+ 17 = 104? No

    So, try the 23.
    Is (3x25)+ 20 = 104? Yes

    posted by drwls
  2. Does anybody know 2 and 3?

    posted by Lily
  3. 2. Let x represent his current age. Solve for x.

    x + 6 = 2x - 7

    3.
    n + d = c
    n = c - d

    posted by Ms. Sue
  4. 3.


    5n + 10d = c
    5n = c - 10d
    n = c/5 - 2d

    posted by ms tooba

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