Mathematics: When placed end to end, three red rods are 2 cm longer than than 2 blue rods. Three blue rods are 2 cm longer than four red rods. How long is each rod?

When placed end to end, three red rods are 2 cm

maddy1854

01.02.2022

Red = 10 cm, blue = 14 cm

Step-by-step explanation:

Let the length of each red rod be r and each blue rod be b

Then we have:

3r - 2b = 23b - 4r = 2

Multiply the first equation by 3 and the second one by 2:

9r - 6b = 66b - 8r = 4

Add the equations to eliminate one of variables:

9r - 8r = 6 + 4r = 10 cm

Find the value of b:

3*10 -2b = 230 - 2 = 2b2b = 28b = 14 cm

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oglygbbjrapidd2851

06.12.2022

zero and positive infinity

Step-by-step explanation:

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