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Sergio039 [100]
3 years ago
15

a student athlete runs 3 1/2 miles in 30 minutes. A professional runner can run 1 1/4 times as far in 30 minutes. How far can th

e professional runner run in 30 minutes?
Mathematics
2 answers:
Elena L [17]3 years ago
7 0
The professional runner can run 2/3 in 30 minutes
tresset_1 [31]3 years ago
3 0
3 1/2 * 1 1/4 =
7/2 * 5/4 =
35/8 = 4 3/8 miles <==
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The slope to the question provided is \frac{1}{3}

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Find the volume of the cone. Round to the nearest tenth.
natulia [17]

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Step-by-step explanation:

8 0
3 years ago
an open box is to be made from a two-foot by three-foot rectangular piece of metal by cutting equal squares from the corners and
tensa zangetsu [6.8K]

The volume for the largest box will be 1.056 foot³. This can find out by application of differentiation.

What is AOD?

AOD is nothing but application of differentiation. It implies scopes where we can use differentiation to make our calculations easy.

Here, given

Length and breadth = 2,3 foot

Let us consider length of side of square = x

So, after cutting squares left sides of rectangular sheet = 2-2x , 3-2x

So, volume = (2-2x)*(3-2x)*x

                v = 4x³ - 10x² + 6x

To find largest volume , \frac{dv}{dx} = 0

                 \frac{dv}{dx} = 12x² - 20x + 6

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                x = 0.4 , 1.3

But, for 1.3 volume will be negative i.e. not possible.

So, volume = 2.2*1.2*0.4

                   = 1.056 foot³

Learn more about differentiation from given link:

brainly.com/question/954654

#SPJ4        

5 0
1 year ago
Mary's current record for her swimming race is 120 seconds. If she can reduce her time by 5%, how many seconds less will that be
rewona [7]
5% of 120 is 6

120 - 6 = 114

Her time would be reduced to 114 seconds.

Hope this helps!
7 0
4 years ago
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My lil sis needs help!!
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Answer: it’s d

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3 years ago
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