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Anuta_ua [19.1K]
4 years ago
6

Need help with question 16 and 18

Mathematics
1 answer:
uranmaximum [27]4 years ago
6 0
<h3>Answer:</h3>

  16) w = 4/15

  18) r -16 = 25; Ronald is 41.

<h3>Step-by-step explanation:</h3>

16) Multiply by the reciprocal of the coefficient of w:

  (1/3)·3w = (1/3)·(4/5)

  w = 4/15

___

18) Ronald's age is unknown and what we're asked to find. Let r represent Ronald's age in years. Then Wendy's age, being 16 years less than Ronald's, can be represented two ways:

  Wendy's age: r-16 . . . . . . 16 years younger than Ronald

  Wendy's age: 25 . . . . . . .given

We can equate these two versions of Wendy's age to have a subtraction equation to find Ronald's age:

  r - 16 = 25 . . . . . . . the equation

 r = 41 . . . . . . . . . . . the solution; found by adding 16 to both sides

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