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djverab [1.8K]
2 years ago
5

How many hours must you drive if you drive 643 miles at 65 mph on the interstate? Round to the nearest tenth hour

Mathematics
2 answers:
madreJ [45]2 years ago
7 0
In order to drive 643 miles at 65 mph, I believe it would take 9.9 hours. (It is 9.8923 not rounded to the nearest tenth btw lol) I hope this is right! :)
IrinaVladis [17]2 years ago
5 0

Answer:

9.9 hours, rounded to the nearest tenth hour.

Step-by-step explanation:

To calculate the time of travel, we must first divide the distance by the speed. Why, you ask? Because of this equation:

Speed\=\ \frac{distance}{time}

Therefore, with a little bit of arrangement, we get:

Time\=\ \frac{distance}{speed}

So, let's get on with it.

Time\=\ \frac{643 \ miles}{65 \ mph}

Time\=\ 9.9 \ hours

Finally, we have our answer: 9.9 hours, rounded to the nearest tenth.

Hope this helped!

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Rasek [7]

Answer:

87 packages

Step-by-step explanation:

First we need to find the volume of the cone-shaped vase.

The volume of a cone is given by:

V_cone = (1/3) * pi * radius^2 * height

With a radius of 9 cm and a height of 28 cm, we have:

V_cone = (1/3) * pi * 9^2 * 28 = 2375.044 cm3

Each package of sand is a cube with side length of 3 cm, so its volume is:

V_cube = 3^3 = 27 cm3

Now, to know how many packages the artist can use without making the vase overflow, we just need to divide the volume of the cone by the volume of the cube:

V_cone / V_cube = 2375.044 / 27 = 87.9646 packages

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3 years ago
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Fantom [35]

Answer:

B. What was the highest temperature this month?

Step-by-step explanation:

Rory is recording the <em>high</em><em>est</em><em> temperature</em> for the duration of the day for month's worth of data.

B. is the easiest one to answer, as you simply will have to look for the greatest number within the set, and that will be the answer.

A. is too broad, and does not imply that only the "high temperature" is needed, rather just a leveled temperature within day in that month.

C. is the opposite of what Rory had recorded, and without data, he cannot answer it.

D. is answerable as well, but, again, the only temperature recorded is the high temperature. Temperature can fluctuate depending on the time of the day, and can be in the 50s one hour and the 90s in another.

~

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2 years ago
7 times something equals 94
Mariulka [41]
7 × __ = 94

Divide by 7 on both side.

__ = 94 ÷ 7

Answer = 13 3/7
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A bottle of grape juice costs 6.50$ of you buy 6 bottles you can get 10%discount workout how much you save if you buy 6 bottles
Neporo4naja [7]

Answer:

$2.6

Step-by-step explanation:

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Whitepunk [10]

Answer:

24.2 years

Step-by-step explanation:

The basic formula is I = P * i * t, where I is interest, P is total principal (or profit), i is rate of interest per year, and t is total time in years. I = P * i * t can be rearranged to solve for t: t = I / (i * p).

In this question I = $6400, P = $3200 and i = 8.25%, so we plug in those numbers to get t = 6400 / (0.0825 * 3200), which solves to 24.2424 years.

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