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jonny [76]
3 years ago
8

A race car driver lost 8 seconds off the leader for each of the 3 pit stops the driver made. At each of the next 2 pit stops the

driver gained 10 seconds on the leader. Which represents the amount of time the driver is off the leader?
Mathematics
2 answers:
olasank [31]3 years ago
7 0

Answer:

A is correct answer

Step-by-step explanation:

julsineya [31]3 years ago
5 0

Answer:

-4 seconds

Step-by-step explanation:

The question says he lost 8 seconds off the leader for each of the 3 pit stops that he made

8 x 3 = 24

This means that 24 seconds was lost.

If 10 seconds were gained for the next 2 pit stops, the driver gained a total of

2 x 10 = 20seconds

The amount of time he is off leader =

20 -24

= -4 seconds

We have it that -4 seconds represents time he is off the leader.

Thank you!

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Answer:

x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}

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