Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises - Page 182: 32



Work Step by Step

Let t be the number of tetras you can buy. The cost of each tetra is 3.99 dollars, or 3.99t. If you can spend no more than 25 dollars, the cost of the tetras must be less than or equal to 25 dollars. 3.99t≤25⟶ divide each side by 3.99 3.99t÷3.99≤25÷3.99 t≤6.3 Since it is not possible to buy a fraction of a tetra and rounding up would make the cost exceed 25 dollars, t≤6
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