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Brums [2.3K]
3 years ago
10

2/3=z/15 what is z? Please help

Mathematics
2 answers:
jolli1 [7]3 years ago
5 0

Answer:

z=10 because 3x5=15 and you do the same to the other number.

Step-by-step explanation:

faust18 [17]3 years ago
4 0

Answer:

10

Step-by-step explanation:

To get from 3 to 15 you multiply by 5 so if you multiply 2 by 5 you get 10

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Find the equation of the line passing through the points (-2/3,1) and (-2,1/2). Write the equation in standard form.
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Standard form is y = mx + b.
To find the slope, m, we must find the 'rise over run,' or the difference in y divided by the difference in x. We do this by:
\frac{y1 - y2}{x1 - x2}  =  \frac{ (-  \frac{2}{3} ) - ( -2 )}{(1) - ( \frac{1}{2} ) } =  \frac{ \frac{4}{3} }{ \frac{1}{2} } \\  =  \frac{4}{3}  \times  \frac{2}{1}  =  \frac{8}{3}
Therefore, the slope is 8/3.

To find b, we must plug in the slope and one point:
(1) = ( \frac{8}{3} )( -  \frac{2}{3} ) + b \\ 1 =  -  \frac{16}{9}  + b \\  \frac{25}{9}  = b
Therefore, b is 25/9, and the total equation is
y =  \frac{8}{3} x +  \frac{25}{9}
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3 years ago
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The answer to your question is : B. 5 * 1\4
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