Unit 1 Lesson:6 Exercise 2

1) Ten articles cost 25.How many similar articles could I buy for 225?

2) In a bag of small balls 1/4 are green, 1/8 are blue, 1/2 are yellow and the remaining 26 white. How many balls are blue?

3)In my purse I have eight coins with a total value of $4.10 they are made up of $1, 50 cent and 20 cent. How many of each type do I have?

4)N is one of the numbers below. N is such that when multiplied by 0.75 gives 1. Which number is equal to N?

A) 3/2        B) 4/3        C) 5/3                    D) 3/2

5)The Sum of three numbers is 78. The third numbers is 2 time the first. The second number is 10 more than the first what are the numbers?

6)Kara wanted to earn a 90% for her overall history grade. During the course she has to take 5 tests so far she has only taken 4 tests. Her exams scores for the test are as follows 85,83,99,95. If Kara wants to ensure she will receive a 90%. What is the minimum score on the 5th test that she can receive?

7) Loretta is responsible for buying a week’s supply of food and medication for the dogs and cats at a local shelter. The food and medication for each dog costs twice as much as those supplies for a cat. She needs to feed 164 cats and 24 dogs.  Her budget is $4240.  How much can Loretta spend on each dog for food and medication?

8) If the length of the side of a square is doubled, what is the ratio of the areas of the original square to the area of the new square? 

9) A car is traveling 75 kilometers per hour. How many meters does the car travel in one minute? 

10) Rita, Juan and Eric have a total of $114 in their wallet. Eric has 3 times what Juan has. Rita has $9 more than Juan. How much does each have?