need help please. I answered (c)incorrectly.
Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the race? Round your answer to the nearest hundredth of a second.
Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the race? Round your answer to the nearest hundredth of a second.
(a)2 minutes and 2.91 seconds
(b)2 minutes and 1.97 seconds
(c)2 minutes and 2.22 seconds
(d)2 minutes and 2.28 seconds
I wish you hadn't put my name on this post. I've tried to find the answer, but I can't. I am not a math tutor.
My skills are limited to simple problems.
To solve this problem, you need to first find out how much slower Julia's horse is compared to Chantal's horse.
Chantal's horse finishes the race in one minute and 59.53 seconds.
To find the 2.25 percent slower time for Julia's horse, you can multiply Chantal's time by 2.25 percent and subtract that amount from Chantal's time.
2.25 percent of 1 minute and 59.53 seconds is:
(1 minute and 59.53 seconds) * (2.25/100)
= (1.99) * (2.25/100)
= 0.043875 minutes or approximately 2.63 seconds
Now subtract this time from Chantal's time to find Julia's time:
1 minute and 59.53 seconds - 2.63 seconds = 1 minute and 56.90 seconds
The nearest hundredth of a second for Julia's time is 1.97 seconds.
Therefore, the correct answer is (b) 2 minutes and 1.97 seconds.