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Alex777 [14]
3 years ago
12

The principal P is borrowed and the loan's future value A at time t is given. Determine the loan's simple interest rate r.

Mathematics
1 answer:
Virty [35]3 years ago
8 0

A = P + SI

A-P = SI

5425-5000 = 425

THEREFORE THE SIMPLE INTRESTE IS $425

SI = PTR/100

425 = 5000×1×R/100

425×100/5000×1=R

425×100÷5,000×1 = 8.5%

THEREFORE THE RATE IS 8.5%

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Kelly saved $150. That is 50% of the money she earned this summer. How much did Kelly earn this summer?
Orlov [11]

Question

Kelly saved $150. That is 50% of the money she earned this summer. How much did Kelly earn this summer?


Answer:

<h2>300$</h2>

Step-by-step explanation:

50% = 1/2 = 0.5

150 is the 50% of the money she earned this summer.

Solution

150 * 2 = 300$


3 0
3 years ago
Read 2 more answers
The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the mean steer weight is 1000 lbs
ElenaW [278]

Answer:

0.9466 = 94.66% probability that the weight of a randomly selected steer is between 639 and 1420lbs.

Step-by-step explanation:

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.

In this problem, we have that:

\mu = 1000, \sigma = 200

Find the probability that the weight of a randomly selected steer is between 639 and 1420lbs.

This is the pvalue of Z when X = 1420 subtracted by the pvalue of Z when X = 639. So

X = 1420

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

Z = \frac{1420 - 1000}{200}

Z = 2.1

Z = 2.1 has a pvalue of 0.9821

X = 639

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

Z = \frac{639 - 1000}{200}

Z = -1.805

Z = -1.805 has a pvalue of 0.0355

0.9821 - 0.0355 = 0.9466

0.9466 = 94.66% probability that the weight of a randomly selected steer is between 639 and 1420lbs.

7 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is translated down and left to form quadrilateral OLMN. If AB = 6 units, BC = 5 units, CD = 8 units, and AD =
kkurt [141]

Answer:

6units

Step-by-step explanation:

ABCD is translated to OLMN which meansthat AB has been translated to OL, so length of OLmust be equal to AB

Thus OL=6units

4 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST &lt;3
Snezhnost [94]

If we multiply a positive integer with a positive integer, then it will be a positive integer. + × + = +

If we multiply a negative integer with a negative integer, then it will be a positive integer.

- × - = +

If we multiply a positive integer with a negative integer, then it will be a negative integer. + × - = -

If we multiply a negative integer with a positive integer, then it will be a negative integer. - × + = -

Actually there are three rules only. So I can't provide five sentences

4 0
2 years ago
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Any suggestions or answers
USPshnik [31]

Answer:

(-2,2)

Step-by-step explanation:


5 0
3 years ago
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