Emma is training for a 10 -kilometer race. She wants to beat her last 10 -kilometer time, which was 1 hour 10 minutes. Emma has already run for 55 minutes. Which inequality can be used to find how much longer she can run and still beat her previous time? open paren 1 hr is equal to 60 min close paren
Answer
A
70 is greater than t plus 55
B
70 is less than or equal to t plus 55
C
70 is less than t minus 55
D
70 is greater than t minus 55
Explanation
Her previous time was 1 hour 10 minutes, which is 60 + 10 = 70 minutes. If t is how many more minutes Emma runs, her total time will be t + 55 minutes. To beat her previous time, that total must be less than 70, so 70 is greater than t + 55.
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