7.2D STUDENT ACTIVITY #1 - rgccisd

GRADE 7 MATHEMATICS(7.2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, or divides to solve problems and justifysolutions. The student is expected to: (D) use division to find unit rates and ratios in proportional relationships such as speed, density, price,recipes, and student-teacher ratio.NAME___________________ DATE___________ SCORE ___/57.2D Homework #11. Party balloons cost $15 for four balloons. How much will Mary spend on balloons if she buys a dozen balloons? Show yourwork.2. Johnny is the local paperboy for our neighborhood. He can deliver 15 papers in 10 minutes. How long will it take him todeliver 300 papers? Show your work.3. The ratio of girls to boys in Mrs. Green’s seventh grade homeroom is 7:6. If there are 12 boys in her homeroom, how manytotal students are in her homeroom? Show your work.4. Reams of typing paper were on sale for 3 for $10.00 at the local office supply store. If Mrs. Lange spent $100.00 on paper,how many reams did she buy?5. A bag contains 12 red, 10 blue, 6 yellow and 8 green marbles. What is the ratio of the red to green marbles in the bag?TEKSING TOWARD TAKS 2009 6 Weeks 4 - Lesson 1 Page10