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mafiozo [28]
3 years ago
9

Wha is the solution of - 28 = 22 - 5× ?

Mathematics
2 answers:
Nataly [62]3 years ago
6 0
-28 = 22 - 5x

-28 -22 = 22 -22 -5x

-50 = -5x

-50/-5 = -5x/-5

10 = x

x = 10
Alex73 [517]3 years ago
6 0

To solve the equation we have to rearrange the terms i.e. like terms on one side

-28 = 22 - 5x

Subtracting 22 from both sides we get

-28 -22 = 22-5x - 22

-50 = -5x

Divide both sides by -5 we get

\frac{-50}{-5} = \frac{-5x}{-5}

On simplifying we get

x =10

Hence, x= 10 is your answer

Hope this will help

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Frank needs to pay R60 000,00 towards his son’s university fees in three years’ time. If he has R46 150,30 now, at what interest
yanalaym [24]

Using compound interest, it is found that he must invest his money at a rate of 8.78% a year.

<h3>What is compound interest?</h3>

The amount of money earned, in compound interest, after t years, is given by:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

In which:

  • A(t) is the amount of money after t years.
  • P is the principal(the initial sum of money).
  • r is the interest rate(as a decimal value).
  • n is the number of times that interest is compounded per year.

In this problem, the parameters are as follows:

t = 3, A(t) = 60000, P = 46150.3, n = 12.

Hence:

A(t) = P\left(1 + \frac{r}{n}\right)^{nt}

60000 = 46150.3\left(1 + \frac{r}{12}\right)^{12 \times 3}

\left(1 + \frac{r}{12}\right)^{36} = 1.3

\sqrt[36]{\left(1 + \frac{r}{12}\right)^{36}} = \sqrt[36]{1.3}

1 + \frac{r}{12} = (1.3)^{\frac{1}{36}}

1 + \frac{r}{12} = 1.00731451758

\frac{r}{12} = 0.00731451758

r = 12 x 0.00731451758

r = 0.0878.

He must invest his money at a rate of 8.78% a year.

More can be learned about compound interest at brainly.com/question/25781328

6 0
2 years ago
What is the greatest commwhat is the greatest common factor of 14, 28, and 42
Harrizon [31]

Answer: GCF = 14

Step-by-step explanation:

The factors of all numbers:

14 - 2, 7, 14

28 - 2, 4, 7, 14, 28

42 - 2, 7, 14

As you can see, 14 is our GCF.

8 0
4 years ago
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zhannawk [14.2K]

Answer:

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Step-by-step explanation:

1400 km in 2 hrs & 20 mins  (or 2.33 hours)

1400/2.33 = 600 km/hour

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3 years ago
What is the result of converting 14 in into centimeters
AVprozaik [17]

Answer:

35.56

Step-by-step explanation:

1 in=2.54 cm.

14*2.54=35.56.

6 0
3 years ago
HELP FAST 34 POINTS AND BRAINLIEST!!
mezya [45]

Answer:

Red:  1/2

White:  1/6

Blue:  1/3

Step-by-step explanation:

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Red: 9/18 reduces to 1/2

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