amandawang0421 amandawang0421
  • 15-04-2018
  • Mathematics
contestada

25-foot long board is to be cut into two parts. The longer part is one foot more than twice the shorter part. How long is each part?

Respuesta :

carlosego
carlosego carlosego
  • 24-04-2018
To solve this problem you must apply the following proccedure:

 1. You have that 25-foot long board is to be cut into two parts. Then, the first equation is:

 a+b=25

 2. 
The longer part is one foot more than twice the shorter part:

 a=1+2b

 3. The system of equation is:

 a+b=25
 a=1+2b

 4. When you solve it, you obtain:

 a=25-b

 25-b=1+2b
 25-1=2b+b
 24/3=b
 b=8 ft

 a=1+2(8)
 a=17 ft
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