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Kim9876Zey
- Newbie | Next Rank: 10 Posts
- Posts: 7
- Joined: Wed Jun 20, 2012 6:01 pm
When a certain tree was first planted, it was 4 feet tall, and the height of the tree increased by a constant amount each year for the next 6 years. At the end of the 6th year, the tree was 1/5 taller than it was at the end of the 4th year. By how many feet did the height of the tree increase each year?
3/10
2/5
1/2
2/3 Correct
6/5
To furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tables in a warehouse that are all different from eachother. If there are 5 chairs in the warehouse and if 150 different combinations are possible, how many tables are in the warehouse?
6 correct
8
10
15
30
Six machines, each working at the same constant rate together can complete a certain job in 12 days. How many additional machines, each working at the same constant rate, will be needed to complete the job in 8 days?
2
3 correct
4
6
8
3/10
2/5
1/2
2/3 Correct
6/5
To furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tables in a warehouse that are all different from eachother. If there are 5 chairs in the warehouse and if 150 different combinations are possible, how many tables are in the warehouse?
6 correct
8
10
15
30
Six machines, each working at the same constant rate together can complete a certain job in 12 days. How many additional machines, each working at the same constant rate, will be needed to complete the job in 8 days?
2
3 correct
4
6
8
