3) Randy walked 5 blocks on the first day he started his training program. He increases his distance 2 blocks each day. On the last day, he walked 19 blocks. How many days was he in training?
What is asked?
Given:
operation:
Number Sentence:
Solution:
Answer:
What is asked?
Given:
operation:
Number Sentence:
Solution:
Answer:
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What is asked? The question is asking for the number of days the person was in training.
Given: The person increases his distance by 2 blocks each day. On the last day, he walked 19 blocks.
Operation: To find the number of days the person was in training, we need to divide the total distance walked by the increase in distance per day.
Number Sentence: Let "d" be the number of days the person was in training. The distance walked on the last day is 19 blocks, and the increase in distance per day is 2 blocks. So, we can write the number sentence as:
19 = 2d + 1
Solution: To solve for "d," we need to isolate the variable on one side of the equation. We can do this by subtracting 1 from both sides of the equation and then dividing both sides by 2:
19 - 1 = 2d + 1 - 1
18 = 2d
d = 9
Answer: The person was in training for 9 days.
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