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RoseWind [281]
3 years ago
5

Greg has decreased his running time by 1 tenth minute each of the last six weeks. Write an expression to represent the total cha

nge in his time over the last six weeks. Then, find the total change.
Mathematics
2 answers:
Alla [95]3 years ago
7 0

Answer: Total change= 36 seconds.


Step-by-step explanation:

Let Greg's initial running time be t seconds.

As Greg has decreased his running time by 1 tenth minute each week.

Now, 1 tenth of minute =\frac{1}{10}\times60=6\ seconds

Thus In the first week, his running time = t-6

In the second week, his running time =t-6-6=t-12=t-2(6)

Similarly,

In the sixth week, his running time =t-6(6)=t-36

Hence, the total change in time of running = 36 seconds


Agata [3.3K]3 years ago
6 0
R = -1/10x. Don't forget to rate and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~

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