1. Symbolize each problem as an equation (or a system) but do not solve it. (a). A chem lab stores acid solutions in two concentrations, 8% and 15%. How much of each should a chemist mix to obtain 5 liters of a 10% solution? 10 (b). A rectangle’s length is 5 cm longer than half the width. The perimeter is 100 cm. What is the rectangle’s width?  (c). A rectangle’s width is 3 cm shorter than twice the length. The area is 54 sq cm. What is the rectangle’s length?

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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1. Symbolize each problem as an equation (or a system) but do not solve it.

(a). A chem lab stores acid solutions in two concentrations, 8% and 15%. How much of each should a chemist mix to obtain 5 liters of a 10% solution? 10

(b). A rectangle’s length is 5 cm longer than half the width. The perimeter is 100 cm. What is the rectangle’s width? 

(c). A rectangle’s width is 3 cm shorter than twice the length. The area is 54 sq cm. What is the rectangle’s length? 

(d). A car leaves San Francisco going 55mph. A second car follows the first an hour later, traveling at 60mph. When does the second car catch up to the first? 13

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