13.
Formula: P= 2x + 2y
2(7)+2(9)=
14+18= 32 cm letter A
14. A 3x
15. D x-3
Answer:
13) C. 16 cm
14) D. 3 - x
15) B.
Solution:
13) 7 + 9 = 16 cm
14) Since Winnie's 3 times older then Joey, He's less than 3 years old (3 - x).
15) If Winnie's present age is x, his past age is
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Answers & Comments
13.
Formula: P= 2x + 2y
2(7)+2(9)=
14+18= 32 cm letter A
14. A 3x
15. D x-3
Answer:
13) C. 16 cm
14) D. 3 - x
15) B.![\frac{x}{3} \frac{x}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D)
Solution:
13) 7 + 9 = 16 cm
14) Since Winnie's 3 times older then Joey, He's less than 3 years old (3 - x).
15) If Winnie's present age is x, his past age is![\frac{x}{3} \frac{x}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D)