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Leto [7]
3 years ago
14

Grayson's car used 2 gallons to travel 30 miles. How far can he travel on 3 gallons?​

Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0

Answer:

45

Step-by-step explanation:

You do 30 divided by 2 = 15. then you do 15+30=45, and boom, there is your answer

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What is the median of the menu items in the plot below?​
DerKrebs [107]

Step-by-step explanation:

There are 13 numbers here:

30, 30, 31, 32, 42, 49, 58, 58, 67, 67, 69, 78, 90.

The median number is the 7th number, which is 58.

6 0
3 years ago
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MATH HELP!!! 100PTS!!!
Lostsunrise [7]

Answer:

x =\dfrac{20 +\sqrt{454}}{18}, \quad \dfrac{20 -\sqrt{454}}{18}

Step-by-step explanation:

<u>Given functions</u>:

  p(x)=2x-4

  r(x)=\dfrac{6x-1}{9x+1}

Solve for p(x) = r(x):

\begin{aligned}p(x) & = r(x)\\\implies 2x-4 & = \dfrac{6x-1}{9x+1}\\(2x-4)(9x+1)&=6x-1\\18x^2+2x-36x-4&=6x-1\\18x^2-40x-3&=0\end{aligned}

As the found quadratic equation cannot be factored, use the Quadratic Formula to solve for x:

<u>Quadratic Formula</u>

x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0

Therefore:

a=18, \quad b=-40, \quad c=-3

Substitute the values of a, b and c into the <u>quadratic formula</u> and solve for x:

\begin{aligned}\implies x & =\dfrac{-(-40) \pm \sqrt{(-40)^2-4(18)(-3)} }{2(18)}\\\\& =\dfrac{40 \pm \sqrt{1816}}{36}\\\\& =\dfrac{40 \pm \sqrt{4 \cdot 454}}{36}\\\\& =\dfrac{40 \pm \sqrt{4}\sqrt{454}}{36}\\\\& =\dfrac{40 \pm2\sqrt{454}}{36}\\\\& =\dfrac{20 \pm\sqrt{454}}{18}\end{aligned}

Therefore, the solutions are:

x =\dfrac{20 +\sqrt{454}}{18}, \quad \dfrac{20 -\sqrt{454}}{18}

Learn more about quadratic equations here:

brainly.com/question/27750885

brainly.com/question/27739892

6 0
1 year ago
3 points<br> Identify which of the below are functions.
EleoNora [17]
C,f and b I think because u only look at the x and nothing else but when u looking in a linear graph u do a the straight line test
7 0
3 years ago
If this is the given data 24, 12, 19, 26, 19, 20, 15, 17 what is the median​
MAXImum [283]

Answer:

19

Step-by-step explanation:

Rearranging the number in ascending order,

12,15,17,19,19,20,24,26

Median = The average of the 4th and 5th number

=  \frac{19 + 19}{2}  \\  = 19

4 0
2 years ago
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Which number is a factor of 20?
Ludmilka [50]

Answer:

1, 2, 4, 5, 10, 20

Step-by-step explanation:

Factors of 20 will be numbers that multiply evenly into another whole number to get to 20.

5 0
2 years ago
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