Grade 7 – Chapter 4

QUESTION #5 Sainan is designing fences for a summer job. One kind of rail fence has three rails and one post per section Use a scatter plot to determine the number of posts and rails he will need for a fence that is 12 sections. Explain what you did.

A) 12 Sections Long Section NumberPostsRailsPosts and Rails

QUESTION #8 Nitharsana is building a rail fence that has sections like this. Use a scatter plot to determine the number of posts and rails Nitharsana will need to build each fence.

A) 8 Sections long B) 14 Sections long Section NumberPostsRailsPosts and Rails

MATH CONGRESS QUESTION ONE QUESTION TWO Usha reads 10 pages of a novel on night 1. Each night after that she reads three pages more than the night before. Usha thinks she can finish reading her 219 page novel in 10 days. Thivya thinks it’ll take her 22 days. The student council held a car wash to raise $200 for the Children’s Hospital. In the first hour they washed three cars. Each hour after that the number of cars they washed increased by two. How many cars did they wash at the end of 6 hours? If they charged $5.00 per car did they reach their goal? What strategy will you use, Table of Values or a Scatter Plot to solve the problem? Why did you choose that strategy.