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Andru [333]
3 years ago
9

You are assigned 32 math exercises for homework. You complete 87.5% of these before dinner. How many do you have left to do afte

r dinner?
Mathematics
1 answer:
Hunter-Best [27]3 years ago
7 0
You would have 4 left after dinner: (.875)(32)=28 so you have 28 completed before dinner and would have 4 left to do.
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Which of the following is not approximately equivalent to one of the metric units: 1 kilometer, 1 meter, 1 kilogram, or 1 liter?
Nikitich [7]
A.
Note that 1 mile = 1.609 km.
Therefore
0.6 miles = 0.6*1.609 km = 1 km (approximately).

b.
Note that 1 US quart = 0.9463 liters.
Therefore
1 quart = 1 liter (approximately).

c.
Note that 1 pound = 0.4536 kg
Therefore 1 pound is not even approximately equal to one kilogram.

d.
Note that 1 yard = 0.9144 m.
Therefore
1 yard = 1 m (approximately).

Answer:
1 pound is not approximately equivalent to one of the metric units.

5 0
2 years ago
NiCole Spent 15% of her day doing homework. How many hours did she spend on her homework?
Whitepunk [10]

Answer:

4 hour of her day

Step-by-step explanation:

4 0
2 years ago
The cost function in a computer manufacturing plant is C(x) = 0.28x^2-0.7x+1, where C(x) is the cost per hour in millions of dol
Licemer1 [7]

9514 1404 393

Answer:

  $562,500 per hour

Step-by-step explanation:

The cost will be a minimum where C'(x) = 0.

 C'(x) = 0.56x -0.7 = 0

  x = 0.7/0.56 = 1.25

The cost at that production point is ...

  C(1.25) = (0.28×1.25 -0.7)1.25 +1 = -0.35×1.25 +1 = 0.5625

The minimum production cost is $562,500 per hour for production of 1250 items per hour.

_____

<em>Additional comment</em>

This is different than the minimum cost <em>per item</em>. This level of production gives a per-item cost of $450. The minimum cost per item is $358.30 at a production level of 1890 per hour.

5 0
2 years ago
Evaluate 5c+cd when c=1/5 and d=15
oee [108]
5*1/5+1/5*15=4
    1  +  3   =4

This should equal 4 if I did this correctly.
4 0
3 years ago
You and your best friend are meeting at
chubhunter [2.5K]

Answer:

  10.6 miles

Step-by-step explanation:

The corner where Starbucks is located could be considered to be the right angle in a right triangle having legs of 8 miles (distance to you) and 7 miles (distance to your friend). The straight-line distance (d) from you to your friend is the hypotenuse of that triangle. Its length can be found from the Pythagorean theorem.

  d² = 8² +7²

  d² = 64 +49 = 113

  d = √113 ≈ 10.6

You and your friend are about 10.6 miles from each other.

4 0
2 years ago
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