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balandron [24]
3 years ago
5

You estimate that a jar contains 68 marbles. The actual number of marbles is 60. find the percent error.

Mathematics
2 answers:
Lynna [10]3 years ago
8 0
68-60= 8 

8 divided by 60 = .13 repeating

Answer: 13% 
USPshnik [31]3 years ago
4 0
Well not too sure but the diference is 8 and 60 is nearly half of 100 so I would say around 15
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Answer:

\sf y = \bold -\frac{2}{5} x -3

Explanation:

part A identification for slope:

\sf 2x + 5y = 15

\sf 5y = -2x + 15

\sf y = \frac{-2x + 15}{5}

\sf y = -\frac{2 }{5} x+3

comparing with slope intercept form: y = mx + b

we can find that here the slope is \bold -\frac{2}{5}

part B, solving the equation:

if the line is parallel, then the slope will be same.

given coordinates: ( - 10, 1 )

using the equation:

y - y₁ = m( x - x₁ )

\sf y - 1 = \bold -\frac{2}{5} (x --10)

\sf y = \bold -\frac{2}{5} x -4 + 1

\sf y = \bold -\frac{2}{5} x -3

Extra information:

check the image below. this proves that the line is parallel and passes through point (-10, 1). the blue line is question line and red the answer line.

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