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kotegsom [21]
4 years ago
12

Hewlp me now and uh plkz plz plz

Mathematics
2 answers:
tatuchka [14]4 years ago
7 0

Answer:

r = 22

Step-by-step explanation:

Given

\frac{1}{2} r + 4 = \frac{3}{4} r - \frac{3}{2}

Multiply through by 4 to clear the fractions

2r + 16 = 3r - 6 ( subtract 2r from both sides )

16 = r - 6 ( add 6 to both sides )

22 = r

Leokris [45]4 years ago
5 0

Answer:

r=22

Step-by-step explanation:

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Colleen took out a 30 year loan for $145,000 at and apr of 4.5% compounded monthly. Approximately what would the be total cost o
Marrrta [24]

Answer:

total cost of her loan be if she paid it off 8 years early $389,507.11

Step-by-step explanation:

The formula for annual compound interest, including principal sum P, rate of interest r, number of years t, and  the number of times that interest  is compounded per year is n:

A = P (1 + r/n)^ (nt)

calculate total cost after 22 years

P = $145,000

r = 4.5 %

t = 22 years

n = 12

A = P (1 + r/n)^ (nt)

A =  145,000(1 + 4.5/12)^ (22x12)

A = $389,507.11


4 0
3 years ago
Read 2 more answers
Suppose that grades on a midterm and a final have a correlation coefficient of .5 and both exams have an average score of 75 and
Eva8 [605]

Answer:

85

Step-by-step explanation:

The correlation coefficient relates the standarized values of the midterms a final score in this way:

\frac{y - y^}{sy}  = r* \frac{x - x^}{sx}

where y is the final score that needs to be found, y^ is the average score on the finals, sy is the standar deviation for the scores on the finals, x is the midterm score, x^ is the average score on the midterms and sx y the standard deviation of the scores on the midterms.

If we issolate y on the equation and solve with the data we have, we get that:

r* \frac{x - x^}{sx}[/tex] = 0.5 * \frac{95 - 75}{10} = 1

y = 75 + 1*10 = 85

This means the predicted final score will be 85.

5 0
3 years ago
Would this be 0/20??
Alexandra [31]

Answer:

No, it would be -14/20

Step-by-step explanation:

When you subtract from a negative your answer is still going to be negative.

-7 - 7 = -14


8 0
3 years ago
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Bill has enough money to buy no more than 1/2 pound of cheese. How much cheese could he buy?
Sladkaya [172]
Since Bill doesn't have enough money to buy <em>more</em> than 1/2 pound of cheese, the most cheese he could buy with his money is half a pound.
3 0
4 years ago
Read 2 more answers
Please help me with the three questions on the top ignore the writing
USPshnik [31]

Answer:

1. (1/4 x 5/4 x 5/4) = 25/64

2. (2/4 x 2/4 x 6/4) = 3/8

3. (1/4 x 1/4 x 4/2) 1/8

Step-by-step explanation:

Thank me later.

5 0
3 years ago
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