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Levart [38]
3 years ago
11

Madison is training for a marathon. Her goal is to run 26.2 miles a day. She currently can run 18.5 miles in a day. About how ma

ny more miles does she need to run in a day to meet her goal?
Mathematics
2 answers:
olganol [36]3 years ago
3 0
So,

This is simply subtraction.

26.2 - 18.5 = 7.7 mi.
This is exact.

However, if you wanted to round to the nearest mile, it would look like this:
26 - 19 = 7 mi.
This is because in 26.2 mi., 2 is less than 5, and in 18.5 mi., 5 is greater than or equal to 5.
This is rounding to the nearest mile.
postnew [5]3 years ago
3 0
Let's roound this
26.2 rounds to 26
18.5 rounds to 19 since 5 or more rounds up
so she runs 19 and wants to run 26, estimate differnce
26-19=7

the answer is 7 miles
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Thee population of a town, P(t), is 2000 in the year 2010. Every year, it increases by 1.5%. Write an equation for the populatio
steposvetlana [31]

Given:

In 2010, the population of a town = 2000

Every year, it increase by 1.5%

To find the equation P(t) which represents the population of this town t years from 2010.

Formula

If a be the original population of a town and it increases by b% every year, after t year the population will be

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Now,

Taking, a  =2000, b = 1.5 we get,

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3 years ago
The graph of a proportional relationship contains the point (20, 4).
soldier1979 [14.2K]

Answer:

y=\frac{1}{5}x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have

point (20,4)

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k=y/x

k=\frac{4}{20} =\frac{1}{5}

therefore

the equation of the line is equal to

y=\frac{1}{5}x


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--------------  -  --------------
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= --------------  -  --------------
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= --------------  -  -----------------------
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= --------------  -  -----------------------
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= -----------------------------------
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Answer is A. first one         
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