Fred paid $72 last week in gas for his car. If he used 56 gallons of gas. How much did he pay per gallon ?

Answers

Answer 1

Answer: he pays $.777777 repeating or about $.78

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What is the median for the numbers 3.60, 3.80, 5.44, 5.52, 5.72, 7.22?I know it's between 5.44 and 5.52

Answers

okay so first of all we need to know the definition of our median first*
median: Given any group of numbers we put the numbers in order from least to greatest then find the number that's right in the middle.
Here ill show you how we do it:)
3.60, 3.80, 5.44, 5.52, 5.72, 7.22?
its already in order for us:)
but when we find the middle number it turns out that we have two middle numbers:/
simple:) all we do is take the two numbers add them together and divide by two
since our middle numbers are 5.44 and 5.52 we are going to use these:)
first add!
5.44 + 5.52 = 10.96
now divide that by 2
10.96 ÷ 2 = 5.48
so our median for this set of numbers is
5.48!
hope this helps;)

The answer is 5.48 because the middle numbers are 5.44 and 5.52 so what you do is find the mean or average of the two numbers by adding them together then dividing them by two, so: (5.44 + 5.52) / 2 = 5.48

Does the equation y= -1/x represent a direct or inverse variation?

Answers

The equation y = -1/x represent a inverse variation

Solution:

Given, equation is $y = (-1)/(x)$

We have to find the relation between x and y

Now, for finding the relation we have to take two sets of values of x and y and substitute them in given equation.

$\begin{array}{l}{\text { Now, take } y=1 \rightarrow 1=-(1)/(x) \rightarrow x=-1} \n\n {\text { Now, take } y=-1 \rightarrow-1=-(1)/(x) \rightarrow x=1}\end{array}$