Let P be a point between points S and T on . If ST = 21, SP = 3b – 11, and PT = b + 4, solve for b.
ST = SP + PT 21 = (3b - 11) + (b + 4) 21 = 4b - 7 4b = 21 + 7 = 28 b = 7
Question
Updated 5/12/2014 8:22:27 PM
Rating
3
ST = SP + PT
21 = (3b - 11) + (b + 4)
21 = 4b - 7
4b = 21 + 7 = 28
b = 7
Confirmed by jeifunk [5/12/2014 8:25:26 PM]

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The Smiths have two children. The sum of their ages is 23. The product of their ages is 132. How old are the children?
Question
Updated 321 days ago|7/8/2018 11:12:00 PM
The Smiths have two children. The sum of their ages is 23. The product of their ages is 132. The children are 11 and 12 years old.
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Added 321 days ago|7/8/2018 11:12:00 PM
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Use a Venn diagram to find the GCF of the pair of numbers. 54, 144 a. 4 c. 18 b. 9 d. 12
Question
Updated 5/18/2014 9:10:07 PM
The GCF of the pair of numbers 54, 144 is 18.
Confirmed by jeifunk [6/30/2014 11:26:41 PM]
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