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Kobotan [32]
4 years ago
15

Jim is 3 inches taller than Al, and Al is twice as tall as Becca. How tall is Jim if the sum of their heights is 199 inches?

Mathematics
2 answers:
svp [43]4 years ago
6 0
Imagine Becca as x, Al as 2x (Since he is twice as tall), and Jim as 2x+3 (since he is 3 inches taller than Al). Then make an equation out of their values and set it equal to 199.


x+(2x)+(2x+3)=199
5x+3=199
5x=196
x=39.2

Now we know that Becca is 39.2 inches so now plug in 39.2 for x in Jim's number.

2x+3
2(39.2)+3
78.4+3
81.4

Jim is 81.4 inches tall
laila [671]4 years ago
4 0
Jim is 81.4 inches tall
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