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IrinaVladis [17]
3 years ago
10

Kimberly loves to ski in the winter, but her least favorite part is riding the slow ski lift to the top of the mountain. Each sk

i-lift ride takes 5 minutes. During her most recent ski session, Kimberly spent 60 minutes in all on the ski lift. Let r represent how many ski-lift rides Kimberly took. Which equation models the problem?
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0
60 = 5(r)

60 means total amount of mint
5 means minutes per ride
R is the amount of rides
R = 30 or 30 rides
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You have two recipes that together use a pound of butter. One recipe takes a 1/4 pound more than the other one. How much butter
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Answer:

First recipe needs = 3/8

Second recipe needs = 5/8

Step-by-step explanation:

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Answer:

The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).

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