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mixas84 [53]
3 years ago
15

A woman walks a constant speed of 4.5km per hour. How long will it take her to walk 10 km? Use the formula d=st. write the answe

r in hours and mintues rounded to the nearest minute.
Mathematics
2 answers:
ryzh [129]3 years ago
4 0

d =st

distance = speed * time

10 = 4.5 * t

divide each side by 4.5

10/4.5 = t

100/45 = t  (can't have a decimal in a fraction so I multiply by 10/10)

divide top and bottom by 5

20/9

2 and 2/9 hours

 to get minutes multiply 2/9 by 60

2/9 * 60

120/9

13 3/9

13 1/3 minutes

2 hours 13 1/3 minutes

to the nearest minutes

2 hours 13 minutes

Serjik [45]3 years ago
3 0

Answer:

You must evaluate the function f first.

Division by 0 is undefined.

The composition cannot be evaluated.

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Draw clearly the graph of the linear equation. y=1/2x, where x= (-4 -2, 0, 2, 4)​
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(in attachment)

Step-by-step explanation:

you can find the points by inputting the x-values into the equation to solve for the y-values, then connecting the plotted points to create the line.

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Step-by-step explanation:

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