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vova2212 [387]
3 years ago
14

18. Solve the inequality. Show your work. –6b > 42 or 4b > –4

Mathematics
1 answer:
Nataly [62]3 years ago
5 0
B < -7 or b > -1. If you do not understand how I got this, here is a link.
https://www.symbolab.com/solver/step-by-step/-6b%20%3E%2042%20or%204b%20%3E%20-4


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The Dallas Development Corporation is considering the purchase of an apartment project for $100,000. They estimate that they wil
katovenus [111]

Answer:

  • <u>The rate of return is 8.15%</u>
  • <u>This is a good investment</u>

<u></u>

Explanation:

For the first question, you need to find the rate that makes the present value of a stream of ten constant annual payments of $15,000 equal to the $100,000 investment.

The formula that returns the present value of a constant payment is called the annuity formula and is:

      Present\text{ }value=payment\times \bigg[\dfrac{1}{r}-\dfrac{1}{r(1+r)^t}\bigg]

In your problem you know:

  • Present value: $100,000
  • payment: $15,000
  • r: ?
  • t: 10

You cannot solve for r directly. You must guess a value and calculate the right side of the equation until to you find the rate that makes it equal to 100,000.

Try 5%:

       \$15,000\times \bigg[\dfrac{1}{0.05}-\dfrac{1}{0.05(1+0.05)^{10}}\bigg]=\$115,826

Then, the rate of return is greater than 5%. After several trials you will find that the rate of return is 8.15%.

Since this rate is higher than 8%, which is what the company requires, this is a good investment.

5 0
3 years ago
Can somebody help me on this problem please I will give you brainliest:)
vodka [1.7K]
That’s confusing do you know the formula your supposed to use?
5 0
3 years ago
The measures of the angels of a triangle are show. In the figure below solve for x
Shalnov [3]

Answer:

54

Step-by-step explanation:

90+36= 126

180-126= 54

5 0
3 years ago
Adult tickets to the aquarium costs $22 each while child tickets cost 15 each. If a large group buys 32 tickets and paid 543 how
Masteriza [31]

Answer:

23 child tickets

Step-by-step explanation:

9 adult tickets

23 child tickets

543-22*9=345

345/15=23

9+23=32 tickets total

4 0
3 years ago
Statistics as a data science Select one:
GenaCL600 [577]

Answer:

Step-by-step explanation:

Statistics as a data science is a way of getting information from data.

Statistics involves the review of data and using same through interpretation to arrive at some information.

It involves collecting and analyzing data, interpreting and presenting same in a manner where it becomes useful information to a reader.

Statistics is a branch of mathematics that deals with topics like mean, median, mode, histogram, bar and pie chart, percentiles, mean deviation, standard deviation, etc.

5 0
3 years ago
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