- #1

Spirochete

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## Homework Statement

There are two equations and 3 variables and I'm asked to solve for the numerical value of a third expression:

We are told that

P/R=3/5

P/T=9/10

The question asks for the value of (R+T)/R

## Homework Equations

The correct answer is 5/3 but I have no idea how to get there. This is from a GRE practice test.

## The Attempt at a Solution

I tried addin' em together. Also solving for "P" to get rid of it doesn't work right away.