The question is incomplete, the complete question is Quincy feeds his dog 2.75 cups of dog food each day. Each cup of dog food costs $1.25. He multiplies the numbers together to determine how much it costs to feed his dog each day. Which expression will result in the best estimate for Quincy to use to check his multiplication?
2x1
2x2
3x1
3x2
Answer:
3x1
Explanation:
This problem is designed to test your knowledge of approximation. In order to obtain the amount spent on dog food each day, the expression involved is; number of cups of dog food × cost of each cup of dog food.
The number of cups of dog food is 2.75, this should be rounded up to 3
The cost of each cup of dog food is $1.25, this can be rounded down to 1 hence the correct answer is 3x1.
2.75 is rounded up to 3, and 1.25 is rounded down to 1. This means the expression would be 3x1.
3x1 is your answer. (D.)
Hope this helps.
