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3 years ago

11

Write a word problem where something start at 8:25 am and ends at 1:43 pm

2 answers:

GarryVolchara [31]3 years ago

8 0

Hello there,

Billy-bob went to the store to pick up groceries to pick up some junk food. He started at 8:25 and all day he was shopping at the store. If billy-bob stopped at 1:43, how long was billy-bob there?

Iteru [2.4K]3 years ago

6 0

Sure.

Me and my Family left at 8:25 am, to go to our Grandmas&Grandpas
house for Christmas. We got the their house at 1:43 am. How long did it take us to get to our Grandmas&Grandpas house?

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pashok25 [27]

Answer:

a) $y=\frac{28}{75}(x-1900)+47.3$

b) 86.5 years

Step-by-step explanation:

All values are rounded to 2 decimal places

a) We can find line by using y =mx+b

$y=mx+b\\m=\frac{y^{2}-y^{1} }{x^{2}-x^{1}}\\m=\frac{69.7-47.3}{1960-1900} \\m=\frac{22.4}{60} \\m=\frac{28}{75}\\c=y-intercept\\y-intercept=47.3\\y=\frac{28}{75} (x-1900)+47.3$

Therefore the line of best fit is $y=\frac{28}{75}(x-1900)+47.3\\$

b) We can do this by using the formula of the best fit line to estimate the life expectancy of someone born in 2005

$y=\frac{28}{75}(x-1900)+47.3\\y=\frac{28}{75}(2005-1900)+47.3\\y=\frac{28}{75}\times105+47.3\\y=86.5$

Therefore the estimated life expectancy of someone born in 2005 is 86.5 years

PS. Please give brainliest answer this was a lot of working out

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3 years ago

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Answer:

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kenny6666 [7]

The sign isn’t switched. [ ie, -7 < 161 = 7 > -161 ]

Explanation :
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