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Gnesinka [82]
3 years ago
11

3/5 (10+5x)−1/3(6x+3)=9 ok answer fast

Mathematics
1 answer:
Anton [14]3 years ago
6 0

Answer: x = 4

<u>Step-by-step explanation:</u>

\dfrac{3}{5}(10 + 5x) - \dfrac{1}{3}(6x + 3)=9

\dfrac{3}{5}(10 + 5x)(15) - \dfrac{1}{3}(6x + 3)(15)=9(15) <em>multiplied by common denominator</em>

3(10 + 5x)(3) - 1(6x + 3)(5) = 9(15)   <em>reduced all fractions</em>

90 + 45x - 30x - 15 = 135      <em>distributed</em>

15x + 75 = 135      <em>simplified (added like terms)</em>

15x = 60         <em>subtracted 75 from both sides</em>

  x = 4          <em>divided 15 from both sides</em>

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Answer:

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On substituting the values in the formula above we will get the required equation of line.

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\Rightarrow y-10=\frac{5}{-4}\cdot (x-6)

On simplification we will get:

y=\frac{1}{4}(-5x+70)

(b) We need to tell at day 0 put x=0 in above equation:

y=\frac{1}{4}(-5\cdot 0+70)

y=70

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Now, we need to tell decrease per day which is equal to the slope of line

To find the slope compare the equation with general equation which is y=mx+c where m is slope

Here, in y=\frac{1}{4}(-5x+70)

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3 years ago
Use formulas to find the area of the figure. A triangle has a horizontal bottom side of length 8 centimeters and two sides of le
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