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Katyanochek1 [597]
3 years ago
11

Whitney left school and drove 7 miles to meet her mother at a restaurant. Her mother left at the same time and drove 8 miles, tr

aveling 5 mi/h faster than her daughter. If the two arrived at the restaurant at the same time, what was Whitney’s speed?
Mathematics
1 answer:
Tresset [83]3 years ago
7 0

Answer:

40

Step-by-step explanation:

If Whitney was driving x speed, her mother was driving x+5. Multiply that by the distance each traveled, and you have an equation that looks like this:

8(x+5) = 7(x)

Simplify it and you get:

8x + 40 = 7x

Now solve regularly:

8x-8x + 40 = 8x - 7x

40 = 1x

40 = x

Whitney's speed: 40

Her mother's speed: 45

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The probability a person selected random is not suffering from Malaria  is 0.725.

Step-by-step explanation:

Denote the events as follows:

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