# Chapter 7 - Section 7.6 - Proportions and Problem Solving with Rational Equations - Vocabulary and Readiness Check: 5

Sum of the number and 5: $z+5$ Reciprocal of the sum of the number and 5: $\frac{1}{z+5}$

#### Work Step by Step

Part 1: Since the number is z, the sum of the number and 5 means that the required expression is $z+5$ Part 2: The reciprocal of the sum of the number and 5 means that we need to take the reciprocal of the expression in part 1. Therefore, the required expression is $\frac{1}{z+5}$

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