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2 years ago

3

Mathematics

1 answer:

lara31 [8.8K]2 years ago

5 0

Answer:

1/2

Step-by-step explanation:

choose 2 points, I chose (-3,2) (1,4)

$m = \frac{4 - 2}{1 - ( - 3)} = \frac{2}{4} = \frac{1}{2}$

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An office remodeling job takes 5 & 1/2 days to complete. Before working

Oksana_A [137]

Answer: The percent of the estimated time is the actual time is about 14%.

Step-by-step explanation:

As per given,

Actual time of completing the job = $5\dfrac{1}{2}\text{ days}=\dfrac{11}{2}\text{ days}$

Estimated time for completing the job = $4\dfrac{3}{4}\ \text{days}=\dfrac{19}{4}\ \text{days}$

The percentage error is given by:-

$\%\text{ error}= \dfrac{|\text{Estimated-Actual}|}{\text{Actual}}\times100$

$=\dfrac{|\dfrac{19}{4}-\dfrac{11}{2}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{|\dfrac{19-22}{4}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{|\dfrac{-3}{4}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{\dfrac{3}{4}}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{3\times2}{11\times4}\times100\\\\\approx14\%$

The percent of the estimated time is the actual time is about 14%.

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Step-by-step explanation:

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