carmen hiked at Yosemite National Park for 2.75 hours. Her average speed was 3.1 miles per hour. How many miles did she hike

Mathematics

1 answer:

SVEN [57.7K]3 years ago

5 0

Answer: 8.525 miles

Step-by-step explanation:

I got this by multiplying 3.1 by 2.75

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Find the volume of the cone. Round your answer to the nearest tenth.

Sergeu [11.5K]

9514 1404 393

Answer:

115.5 cubic yards

Step-by-step explanation:

The volume is given by the formula ...\

V = 1/3πr²h

Here the diameter is 7 yards, so the radius is 3.5 yards. The volume is then ...

V = (1/3)π(3.5 yd)²(9 yd) = 36.75π yd³ ≈ 115.454 yd³

The volume of the cone is about 115.5 cubic yards.

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3 years ago

By selling a stool for rupees 67.50,a carpenter loses 10%.how much percent would he gain or lose by selling it for rupees 82.50.

valentina_108 [34]

Let the actual value of the stool be x.

So if the carpenter sells the stool x rupees he neither loses, now wins anything.

67.50 is the value x - 10% of x, that is:

67.50=x-0.1x
67.50=0.9x

x=67.50/0.9=75 (rupees) is the actual value of the stool.

Selling the stool for 82.50 rupees, the carpenter clearly would make a profit, say of y% of that actual value, that is y%*75.

So using the same method:

82.50=75+y%*75

y%*75=82.50-75=7.5

we can make the calculations, but clearly 7.5 is 10% of 75

Answer: 10% gain.

8 0

3 years ago

The distance between the two points rounding to the nearest tenth<br> (-8,-6) and (-3,-4)

Lesechka [4]

Answer:

5.4

Step-by-step explanation:

To find the distance between two points, $(x_1,y_1)$ and $(x_2,y_2)$ , plug them into the following equation: