mikaylawelcing1 mikaylawelcing1
  • 09-12-2014
  • Mathematics
contestada

Three red rods are 2cm longer than two blue rods. Three blue rods are 2cm longer than four red rods. How long is each rod?

Respuesta :

MsARMY
MsARMY MsARMY
  • 09-12-2014
3r = 2b + 2 
b = (3/2)r - 1 
"Three blue rods are 2 cm longer than four red rods" 
3b = 4r + 2 
3[(3/2)r - 1] = 4r + 2 
(9/2)r - 3 = 4r + 2 
(1/2)r = 5 
r = 10 cm
b = (3/2)(10 cm) - 1 
b = 14 cm
Answer Link

Otras preguntas

Which of the following is an example of a homogeneous mixture? A. Bronze B. Sand C. Copper D. Zinc
what is the difference between NMI and duiscretionary income
how to you solve g, 2/5g = 3/5
could have president Wilson avoided war with Germany
there are 24 counters. How many counters could you add without having to regroup? why?
Which of the following is an example of a homogeneous mixture? A. Bronze B. Sand C. Copper D. Zinc
Which dynasty do many Chinese people still identify strongly with today?
Which statement about Benjamin Banneker is not true? A. He helped survey the nation's capital. B. He published scientific papers on many subjects. C. He was
Which river was not part of the Louisiana Purchase? A. Mississippi River B. Arkansas River C. Missouri River D. Ohio River
How do you do 4x^2+3x-10=0