Khristelle was able to calculate the total number of 3-digit numbers that can be formed from a given set of nonzero digits, without repetition. If there are 120 numbers in all, how many digits were actually given? O 7 8

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter1: Introduction To Algebra
Section1.6: Translating Problems Into Equations
Problem 2E
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Khristelle was able to calculate the total
number of 3-digit numbers that can be
formed from a given set of nonzero digits,
without repetition. If there are 120 numbers
in all, how many digits were actually given?
5
7
8.
Transcribed Image Text:Khristelle was able to calculate the total number of 3-digit numbers that can be formed from a given set of nonzero digits, without repetition. If there are 120 numbers in all, how many digits were actually given? 5 7 8.
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