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STALIN [3.7K]
3 years ago
10

Solve: I kept trying but I can’t do it Thank you a lot for you help

Mathematics
2 answers:
Yakvenalex [24]3 years ago
6 0

Answer:

x =  \frac{21}{4}  \\

Step-by-step explanation:

\frac{2x+3}{15}  =  \frac{9}{10}  \\  \\ (10)(2x + 3) = (9)(15) \\ 20x + 30 = 135 \\ 20x = 135 - 30 \\ 20x = 105 \\ x =  \frac{105}{20}  \\  \\ x =  \frac{21}{4}

scoray [572]3 years ago
3 0

Answer:

5.25

Step-by-step explanation:

15/10=1.5

9*1.5=13.5

13.5-3=10.5

10.5/2=5.25

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3 years ago
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The radius of a circle is 11.7 in. Find the circumference \textit{to the nearest tenth}to the nearest tenth.
hjlf

Answer:

73.5

Step-by-step explanation:

circumference = 2πr , where r = radius

given radius = 11.7 so r = 11.7

C = 2πr

==> plug in r = 11.7

C = 2π(11.7)

==> multiply 2 and 11.7

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7 0
2 years ago
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Answer:

3y = -2x -7

Step-by-step explanation:

The equation of the line;

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Unknown:

Equation of the line passing through (4, -5);

Solution:

To solve this problem;

    the equation of a line is given as;

        y = mx + c

where x and y are the coordinate

           m is the slope

          c is the intercept

To solve this problem,

  The slope  -\frac{2}{3} if the same as that of the new line since they are parallel;

Equation of the new line;

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     -5 =  -\frac{2}{3} x 4 + c

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       c  = -5 + \frac{8}{3}

       c = -\frac{7}{3}

So, the equation of the line is;

    y =  -\frac{2}{3}x - \frac{7}{3}

 or ;

     3y = -2x -7

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3 years ago
Please help will mark brainliest
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Answer: 145.8

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