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here are five rods a-1 a a a a+3 all measurements are in cm the total length of the five rods is l cm find a formula for l in terms of a write your formula as simply as possible

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TaeKwonDoIsDead

Answer:

[tex]I=5a+2[/tex] (simplified form)


Step-by-step explanation:

I is the total length of all the 5 rods.

Each of the 5 parts lengths are [tex](a-1), a, a, a, (a+3)[/tex], respectively.


We add all of them and equate it to I:

[tex]I=(a-1)+a+a+a+(a+3)[/tex]

Simplifying this, we take like terms and add:

[tex]I=(a-1)+a+a+a+(a+3)\\I=5a-1+3\\I=5a+2[/tex]


hamzamiah808

L is the total length of all the 5 rods.

Each of the 5 parts lengths are (a - 1 ), a, a, a, (a + 3), respectively.

We add all of them and equate it to I:

L = (a + 1) + a + a + a + (a + 3)

Simplifying this, we take like terms and add:

L = (a - 1 ) + a + a + a + (a + 3)

L = 5a - 1 + 3

L = 5a + 2

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