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Kobotan [32]
3 years ago
7

Please please help i’ll give brainliest tysm :)

Mathematics
2 answers:
cluponka [151]3 years ago
8 0

Answer:

the tank can hold 12.5 gallons when it is full

Step-by-step explanation:

Let's assume tank can hold 'x' gallons when it is full we are given

The gas gauge in a car shows it has 40% of a tank of gas

So, gas in car is and we have the car has about 5 gallons so, we can set it equal

and then we can solve for x

Multiply both sides 5

we get

So, the tank can hold 12.5 gallons when it is full

Neko [114]3 years ago
3 0

Answer:

C) Between 9 and 13

Step-by-step explanation:

If 40% is 5 gallons, then 20% is 2.5 gallons

If you multiply both by 5, you get 12.5, which is between 9 and 13

Sorry for my weird way of math

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write an equation of the line passing through the point (6,3) that is perpendicular to the line 5x - 6y = 10​
Jlenok [28]

Answer:

5x-6y-12=0

Step-by-step explanation:

...make y the subject y=-6/5x +2

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3 years ago
The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.72 before the discount, and
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If I’m not mistaking it is either 80.29 or 80.30 after rounding,I’m not sure.
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Z varies jointly with y and the square of x. If x=4 when y=−7 and z=−336, find x when z=36 and y=3.
mario62 [17]
\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\

\bf \textit{z varies jointly with y and the square of x}\qquad z=kyx^2
\\\\\\
\textit{we also know that }
\begin{cases}
x=4\\
y=-7\\
z=-336
\end{cases}\implies -336=k(-7)(4)
\\\\\\
\cfrac{-336}{-28}=k\implies 12=k\qquad \qquad \boxed{z=12yx^2}
\\\\\\
\textit{when z=36 and y=3, what is \underline{x}?}\qquad 36=12(3)x^2
\\\\\\
\cfrac{36}{12\cdot 3}=x^2\implies \sqrt{\cfrac{36}{12\cdot 3}}=x
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3 years ago
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I need help on this pleas,what is 9 ÷ 1/5
Mekhanik [1.2K]

Answer:

45

Step-by-step explanation:

Flip the fraction, 1/5 to 5/1, and reverse the equation to a multiplication problem.

1/5 \rightarrow 5/1\\9 \cdot 5/1 = 45

Let me know if you have questions or concerns.

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2 years ago
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oksano4ka [1.4K]

Answer:

x=6

Step-by-step explanation:

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3 years ago
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