Tyler's kite spool had 100 yards of string. He let out 65 feet of string. The kite then rose another 15 yards. What was the length of string left on the spool in feet?
Understand the Problem
The question describes a scenario where Tyler flies a kite, using a spool of string. We need to calculate the amount of string remaining on the spool, given the initial amount, the amount let out, and the additional amount the kite rose, with the final answer expressed in feet.
Answer
$190$ feet
Answer for screen readers
The length of string left on the spool is $190$ feet.
Steps to Solve
- Convert initial string length to feet
We're given that the spool initially has 100 yards of string. Since 1 yard = 3 feet, we convert the initial length to feet:
$100 \text{ yards} \cdot 3 \frac{\text{feet}}{\text{yard}} = 300 \text{ feet}$
- Calculate the total amount of string used in feet
Tyler let out 65 feet of string initially, and then the kite rose another 15 yards, which also needs to be converted to feet:
$15 \text{ yards} \cdot 3 \frac{\text{feet}}{\text{yard}} = 45 \text{ feet}$
So the total amount of string used is:
$65 \text{ feet} + 45 \text{ feet} = 110 \text{ feet}$
- Calculate the remaining string in feet
Subtract the total amount of string used from the initial length of string:
$300 \text{ feet} - 110 \text{ feet} = 190 \text{ feet}$
The length of string left on the spool is $190$ feet.
More Information
The problem involves unit conversion and subtraction. It's a practical application of basic arithmetic.
Tips
A common mistake might be forgetting to convert all measurements to the same unit (feet) before performing the subtraction. Another mistake is misinterpreting that the kite rising another 15 yards means string was taken back, when actually more string was released.
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