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irina [24]
3 years ago
10

People in the United States spend an average of 6 hours and 4 minutes each week reading newspapers. a. That's how many minutes p

er week? b. At that rate, how much time does an average person spend reading newspapers in a 3-day period?
Then there's a chart to fill out. How many minutes per day? There's a chart for numbers 1-7. To figure out a. I have 60 minutes times 6 plus 4 to get 364. I don't know how to do part b or fill in the chart. Can someone please explain it to me? Thanks!
Mathematics
1 answer:
pav-90 [236]3 years ago
5 0
Since people read newspapers for a average of 364 minutes for a week, which is 7 days, you must divide 364 by 7. After you figure out how much they read per day multiply that by three to get your final result.
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A bucket that weighs 4lband a rope of negligible weight are used todraw water from a well that is 80ftdeep. The bucket is filled
liq [111]

Answer:

Workdone = 3200 lb.ft

Step-by-step explanation:

We are told that the bucket is filled with 40 lb of water but water leaks out of a hole in the bucket at a rate of 0.2lb/s

Thus,

Weight of water at any given time (t) would be;

w(t) = 40 - 0.2t - - - - (1)

We are told the bucket is pulled up at a rate of 2ft/s.

Thus, height at time (t); y = 0 + 2t = 2t

Since y = 2t,

Then,t = y/2

Put y/2 for t in eq 1

Thus; w(y) = 40 - 0.2(y/2)

w(y) = 40 - 0.1y

Now, at y = 80 ft, we have;

w(80) = 40 - 0.1(80)

w(80) = 40 - 8 = 32 lb

Since 32 lbs are left, it means there is always water in the bucket.

Thus, work done is;

W = 80,0[∫(Total weight).dy]

W = 80,0[∫[(weight of rope) + (weight of bucket) + (weight of water)]dy]

W = 80,0[∫[0 + 4 + 40 - 0.1y]dy]

Integrating, we have;

W = [44y - y²/20] at boundary of 80 and 0

So,

W = [44(80) - 80²/20] - [0 - 0²/20]

W = 3200 lb.ft

8 0
3 years ago
Solve the equation (-8x-58)= (-2x+35)
BlackZzzverrR [31]
Solve x by simplifying both sides of the equation, then isolating the variable.

Answer:

x= - 31/2
6 0
3 years ago
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How far apart are -120 and -30 on the number line
julia-pushkina [17]
They are 90 apart on a number line
3 0
3 years ago
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Find the volume of this cylinder.
Lina20 [59]

Answer:

The answer is 3418.1 ft rounded to the nearest tenth.

Step-by-step explanation:

The total volume of the cylinder can be defined by the Area of circular base * Perpendicular height.

The area of the circular base can be calculated as

\pi \times  {r}^{2}

where r is the radius of the circular base, which is 8 ft.

The area of the circular base is

\pi \times  {8}^{2}  = 64\pi

We also know the height of the cylinder is 17 ft.

Hence, the volume of the cylinder is

64\pi \times 17 = 1088\pi = 3418.0528...

This will be rounded up to 3418.1 with the nearest tenth

8 0
3 years ago
The number is more than 40 but less than 60. The sum of the digits is 8. It is an odd number. What is the number?
levacccp [35]

Answer:

53

Step-by-step explanation:

Number: xy

x+y = 8

sets for 8: (0,8)(8,0)(1,7)(7,1)(2,6)(6,2)(3,5)(5,3)(4,4)

Number is: 53

3 0
3 years ago
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