8. The ratio of 6th-graders to 7th-graders in the competition is 15 to 8. How many 7th-graders are there if 225 6th-graders are competing? = 15x = 1,800 x = 120 7 th -graders 9. My sister can text 165 words in 2.5 minutes. At this rate how many words will she be ...
free math worksheets for 6th graders real life applications of synthetic substitution simultaneous equations calculator PRENTICE HALL CHEMISTRY WORKSHEETS Beginning and Intermediate Algebra, Third Edition, By Gustafson/Frisk mcgraw-hill financial accounting"chapter answers" quadratic formula java method...