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SVETLANKA909090 [29]
3 years ago
8

Terry invested $2200 in stock market for two years if the investment and 12% how much money did Terry and in two years

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer: The interest is: $528.00

Step-by-step explanation:

Formula ⇒ I = PRT

⇒ <u>P</u> is the principal amount, $2200.00.

⇒<u>R</u> is the interest rate, 12% per year, or in decimal form, 12/100=0.12.

⇒ <u>T</u> is the time involved, 2....year(s) time periods.

⇒So, t is 2 year time periods.

⇒ Finally, To find the simple interest, you just multiply 2200 × 0.12 × 2 to get that:

The interest is: $528.00

* Hopefully this helps:) Mark me the brainliest:)!!

∞ 234483279c20∞

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Step-by-step explanation:

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Haruka hiked several kilometers in the morning. She only hiked 6 kilometers in the afternoon, which was 25 percent less she had
Allisa [31]
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5 0
3 years ago
Read 2 more answers
Help!!! ASAP pleaseee!!
Alla [95]

Answer:

1. The two numbers are 4 and 8.

Step-by-step explanation:

1) variables: x and y

2) x + y = 12, y - x = 4

3) graph using desmos or another graphing calculator

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5 0
3 years ago
"A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean
Arada [10]

Answer:

85.31% probability that their mean rebuild time exceeds 8.1 hours.

Step-by-step explanation:

To solve this question, 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, the sample means with size n of at least 30 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 = 8.4, \sigma = 1.8, n = 40, s = \frac{1.8}{\sqrt{40}} = 0.2846

If 40 mechanics are randomly selected, find the probability that their mean rebuild time exceeds 8.1 hours.

This is 1 subtracted by the pvalue of Z when X = 8.1. So

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

By the Central Limit Theorem

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

Z = \frac{8.1 - 8.4}{0.2846}

Z = -1.05

Z = -1.05 has a pvalue of 0.1469

1 - 0.1469 = 0.8531

85.31% probability that their mean rebuild time exceeds 8.1 hours.

4 0
3 years ago
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