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777dan777 [17]
3 years ago
7

at an airport it costs 7 dollars to park for up to one hour and five dollars per hour for each additional hour. let x represent

the number of hours parked . write the function function that models the cost of parking x hours, where x is an integer greater than one
Mathematics
1 answer:
ivann1987 [24]3 years ago
6 0
I came up with 7+5(x-1)
7 is a fixed one time cost. 
5(x-1). x-1 because you have already charged $7 for the first hour.

Checking to make sure it is correct
so if a person stays 1 hour
7+5(1-1)
7+5(0) = 7     
This answer makes sense because they get charged $7 the first hour

so say they stay 3 hours
7+5(3-1)
7+5(2) = 17
This answer makes sense because they get charges $7 for the first hour and $5 for the other 2. so 7+5+5=17.

we can see that the function works
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Quotient of 0.72 / 4
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Step-by-step explanation:

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3 years ago
I feel like I’m missing something simple. Please help explain?
wariber [46]

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6 0
3 years ago
34. For the following exercises, given each set of information, find a linear equation satisfying the conditions, if possible.
skad [1K]

Answer:

The linear equation for the line which passes through the points given as (-1,4) and (5,2), is written in the point-slope form as $y=\frac{1}{3} x-\frac{13}{3}$.

Step-by-step explanation:

A condition is given that a line passes through the points whose coordinates are (-1,4) and (5,2).

It is asked to find the linear equation which satisfies the given condition.

Step 1 of 3

Determine the slope of the line.

The points through which the line passes are given as (-1,4) and (5,2). Next, the formula for the slope is given as,

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute 2&4 for $y_{2}$ and $y_{1}$ respectively, and $5 \&-1$ for $x_{2}$ and $x_{1}$ respectively in the above formula. Then simplify to get the slope as follows,

m=\frac{2-4}{5-(-1)}$\\ $m=\frac{-2}{6}$\\ $m=-\frac{1}{3}$

Step 2 of 3

Write the linear equation in point-slope form.

A linear equation in point slope form is given as,

$y-y_{1}=m\left(x-x_{1}\right)$

Substitute $-\frac{1}{3}$ for m,-1 for $x_{1}$, and 4 for $y_{1}$ in the above equation and simplify using the distributive property as follows,

y-4=-\frac{1}{3}(x-(-1))$\\ $y-4=-\frac{1}{3}(x+1)$\\ $y-4=-\frac{1}{3} x-\frac{1}{3}$

Step 3 of 3

Simplify the equation further.

Add 4 on each side of the equation $y-4=\frac{1}{3} x-\frac{1}{3}$, and simplify as follows,

y-4+4=\frac{1}{3} x-\frac{1}{3}+4$\\ $y=\frac{1}{3} x-\frac{1+12}{3}$\\ $y=\frac{1}{3} x-\frac{13}{3}$

This is the required linear equation.

5 0
2 years ago
A farmer harvests 15 cucumbers for every 45 carrots. Which of the following ratios represents the ratio of cucumbers to carrots,
Sever21 [200]
15 cucumbers to 45 carrots...

so the ratio of cucumbers to carrots is : 15/45 which reduces to 1/3 <==
5 0
3 years ago
Read 2 more answers
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