Lesson 1:

0.3x+7.9=9.1. 11.03=8.78+0.02x. Solution. x= 21/8 x= 5/6 x= 5/8 x=4. x=112.5. Problem 7 (from Unit 2, Lesson 5) A train travels at a constant speed for a long distance. Write the two constants of proportionality for the relationship between distance traveled and elapsed time. ... 350 cubic inches, 300 cubic inches. Problem 3 (from Unit 7 ... ................
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