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vagabundo [1.1K]
3 years ago
6

Solve the equation and check the solution. Express numbers as integers or simplified fractions.

Mathematics
1 answer:
Nutka1998 [239]3 years ago
8 0

Answer:

opening the brackets we have;

3t+15+5t+15=-4t-12

collect like terms

3t+5t+15+15=-4t-12

8t+30=-4t-12

8t-4t=-12+30

4t=18

t=18/4

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Dina invests $600 for 5 years at a rate of 2% per year compound interest.
Aleks [24]

Answer:

The value of this investment at the end of the 5 years is of $662.5.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

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

Where 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 and t is the time in years for which the money is invested or borrowed.

Dina invests $600 for 5 years at a rate of 2% per year compound interest.

This means that P = 600, t = 5, r = 0.02, n = 1. Thus

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

A(t) = 600(1 + \frac{0.02}{1})^{t}

A(t) = 600(1.02)^t

Calculate the value of this investment at the end of the 5 years.

This is A(5). So

A(5) = 600(1.02)^5 = 662.5

The value of this investment at the end of the 5 years is of $662.5.

5 0
3 years ago
-2(-5x+5) - 3x + 4= -34 solve for x
geniusboy [140]

Answer:

x = -4

Step-by-step explanation:

-2(-5x+5) - 3x + 4= -34

10x - 10 -3x + 4 = -34

7x - 6 = -34

<u>     +6    + 6</u>

7x = -28

x = -4

4 0
3 years ago
Read 2 more answers
19) Solve the inequality. 7x − 9 &gt; 2x + 6 A) x &gt; 3 B) x &gt; 3 5 C) x &gt; −3 D) x &gt; − 3 5
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Answer:

B

Step-by-step explanation:

Given

7x - 9 > 2x + 6 ( subtract 2x from both sides )

5x - 9 > 6 ( add 9 to both sides )

5x > 15 ( divide both sides by 3 )

x > 3 → B

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aleksandr82 [10.1K]

Answer:

try google algebra calculator

Step-by-step explanation:

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Yes, i am what do you need help with?

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