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mash [69]
2 years ago
8

How do I solve this equation? I need a refresher on Algebra.

Mathematics
1 answer:
yaroslaw [1]2 years ago
5 0
These equations seem tricky, but aren't as hard as you think. Just solve it like you are regularly adding fractions.

Your common denominator is 9x + 9, so

1/(9x+9)  =  36/(9x + 9)   -    (5x + 5)/9

1 - 36 + 5x + 5 / 9x - 9
30x - 30/9x - 9
10x-10/3x - 3
10(x-1)/3(x-1)
10/3

Hope this helped!
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5700 is compounded semiannually at a rate of 15% for 12 years
Rama09 [41]

Answer:

$32,335.38

Step-by-step explanation:

You are going to want to use the compound interest formula, which is shown below.

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

<em>P = initial balance </em>

<em>r = interest rate </em>

<em>n = number of times compounded annually </em>

<em>t = time</em>

<em />

Now lets plug in the values into the equation:

5,700(1+\frac{.15}{2})^{12(2)} = 32,335.38

Your answer is $32,335.38

4 0
3 years ago
Milena just turned 11 years old. How old was she 2 1/4 years ago?
ankoles [38]
Milena was 9 years and 3 months old
5 0
3 years ago
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There are 2,100 bacteria in a circular petri dish. The dish has a radius of 40 millimeters. What is the approximate population d
pochemuha
A petri dish is simply a circle; thus, we use the formula of the area of the circle which is <span>πr^2. 
Given r = 40 mm
A = </span>π(40)^2 = <span>5026.55 sq. mm
</span>
Population density = bacteria count / area
PD = 2,100 / <span>5026.55
PD = </span><span>0.417782 bacteria / mm sq.

Therefore, the answer is approximately 0.418 </span><span>bacteria per square millimeter.</span>
6 0
3 years ago
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15.00 + 1.75x &gt; 7.50 + 2.25
ElenaW [278]

Answer:

Step-by-step explanation:

7 0
3 years ago
Question: x-10&lt;6-5x<br><br> is it <br><br> x&lt;8/3<br><br> OR<br><br> x&lt;-8/3<br><br> help ;-;
Montano1993 [528]

You need to isolate/get x by itself in the inequality:

x - 10 < 6 - 5x           Add 5x on both sides

x + 5x - 10 < 6 - 5x + 5x

6x - 10 < 6              Add 10 on both sides

6x - 10 + 10 < 6 + 10

6x < 16          Divide 6 on both sides to get x by itself

x     Simplify the fraction

x          So the 1st option

7 0
3 years ago
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