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Nikitich [7]
3 years ago
14

WILL MARK AS BRAINLIEST IF CORRECT!!!

Mathematics
2 answers:
LenaWriter [7]3 years ago
5 0

Answer:

C) 5(2)(6.25)+2.5t ≥ 85

Step-by-step explanation:

5(2)(6.25)+2.5t ≥ 85

Jessamine wants to ride her bike at least 85 miles per week.

t must make the whole equation AT LEAST 85 miles. So t MUST be larger than or equal to 85.

gizmo_the_mogwai [7]3 years ago
4 0

Answer:

C

Step-by-step explanation:

If I'm not mistaken, she wants to ride atleast 85 miles per week. If you add up all of the values from going to and from the school, you would get 62.5 miles. So for it to add up to 85 miles, she would have to atleast do 9 trips around the park.

These numbers I believe do not matter however, all you need to do is put in C for greater than or equal to 85.

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Mai received a $70 gift card for a coffee store. She used it in buying coffee that cost $8.48 per pound. After buying the coffee
Yuri [45]
Since she had $35.48 on her card.

Amount spent in buying coffee = $70 - $35.48 = $34.52

Cost of coffee = $8.63 per pound

No of pounds = Amount spent / cost per pound

= 34.52 / 8.63 Use your calculator.

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4 0
3 years ago
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The product of 3! is
Alex17521 [72]

Answer:15 is the answer. Product is what you get when you multiply two or more numbers together. In this case, the factors are 3 and 5. 3 x 5 = 15

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In a given year, the average annual salary of a NFL football player was $189,000 with a standard deviation of $20,500. If a samp
nika2105 [10]

Answer:

15.15% probability that the sample mean will be $192,000 or more.

Step-by-step explanation:

To solve this problem, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 189000, \sigma = 20500, n = 50, s = \frac{20500}{\sqrt{50}} = 2899.14

The probability that the sample mean will be $192,000 or more is

This is 1 subtracted by the pvalue of z when X = 192000. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{192000 - 189000}{2899.14}

Z = 1.03

Z = 1.03 has a pvalue of 0.8485.

1-0.8485 = 0.1515

15.15% probability that the sample mean will be $192,000 or more.

7 0
3 years ago
Answer to this please!
lapo4ka [179]

according to mid point theorem:

Bf=1/2CE

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3 0
3 years ago
The length of a rectangle is 45 inches more than the width. The perimeter is 346 inches. Find the length and the width.
dybincka [34]

Solution:

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Let Required length of breadth be x

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Now, We have ;

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So, Length of Rectangle = x + 46

Length of Rectangle = 64 + 46

Length of Rectangle = 110 inches

Now, Breadth of Rectangle = 64 inches.

6 0
3 years ago
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