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Anika [276]
4 years ago
10

the formula d= rt gives the distance traveled in time t at rate r. if a bicyclist rides for 2.3 hours and travels 41 miles, what

was her average speed?
Mathematics
1 answer:
jenyasd209 [6]4 years ago
5 0
(41 miles)/(2.3 hours) = 17.83 miles per hour.
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Solve this problem ...
shusha [124]

Answer:

slope = -4/5   y-intercept = 1

Step-by-step explanation:

y = -4/5+1

3 0
3 years ago
Tisha babysat for 5 hours and earned $32.50. At the same rate, how much would she earn in 8 hours?
kolezko [41]
Start by finding her hourly rate. 32.50/5 = 6.5
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3 0
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This is what I got,
USPshnik [31]
1/x + 1/y = 8
x + y = 8
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4 0
4 years ago
A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1
Harman [31]

The probability that the mean clock life would differ from the population mean by greater than 12.5 years is 98.30%.

Given mean of 14 years, variance of 25 and sample size is 50.

We have to calculate the probability that the mean clock life would differ from the population mean by greater than 1.5 years.

μ=14,

σ=\sqrt{25}=5

n=50

s orσ =5/\sqrt{50}=0.7071.

This is 1 subtracted by the  p value of z when X=12.5.

So,

z=X-μ/σ

=12.5-14/0.7071

=-2.12

P value=0.0170

1-0.0170=0.9830

=98.30%

Hence the probability that the mean clock life would differ from the population mean by greater than 1.5 years is 98.30%.

Learn more about probability at brainly.com/question/24756209

#SPJ4

There is a mistake in question and correct question is as under:

What is the probability that the mean clock life would differ from the population mean by greater than 12.5 years?

5 0
2 years ago
A base ball is thrown a distance of 60 feet what is its speed if it take 5 seconds to cover the distance
vagabundo [1.1K]
60 ft. / 5 sec = 12 mph.
4 0
3 years ago
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