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3 years ago

Which situation CANNOT be represented by this equation? 4x+7=314x+7=31

Mathematics

1 answer:

vovangra [49]3 years ago

8 0

Answer:

The one on the bottom CANNOT be represented by the equation.

Step-by-step explanation:

For the equation in the problem there has to be a 4x, meaning the cost per case multiplied times the about of them (x). Then there has to be a +7 somewhere in the equation for shipping. The two on the top fit both of those descriptions.

Mark Brainliest plz!

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if you see this I really need help on this question asap ty so much... "The flagpole in the diagram below has a height of 10ft.

aev [14]

Answer:

15.62 feet

Step-by-step explanation:

If the flagpole is 10ft tall and the shadow is 12ft long, and you need to find the distance from the top of the flagpole to the far end of the shadow, to get your answer, you must use the pythagorean theorum.

$a^{2} + b^{2} = c^{2}$

let height of flagpole = a

let length of shadow = b

let distance between the two = c

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve each system using elimination. tell whether the system has one solution, infinitely many solutions, or no solution.

Tomtit [17]

1.
$x-2y=-1 \\
2x+y=4 \ \ \ |\times 2 \\ \\
x-2y=-1 \\
\underline{4x+2y=8 \ } \\
x+4x=8-1 \\
5x=7 \\
x=\frac{7}{5} \\
x=1 \frac{2}{5} \\ \\
x-2y=-1 \\
\frac{7}{5}-2y=-1 \\
-2y=-1-\frac{7}{5} \\
-2y=-\frac{5}{5}-\frac{7}{5} \\
-2y=-\frac{12}{5} \\
y=\frac{6}{5} \\
y=1 \frac{1}{5} \\ \\
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2.
$x+3y=4 \ \ \ |\times 2 \\
2x-6y=8 \\ \\
2x+6y=8 \\
\underline{2x-6y=8} \\
2x+2x=8+8 \\
4x=16 \\
x=4 \\ \\
x+3y=4 \\
4+3y=4 \\
3y=4-4 \\
3y=0 \\
y=0 \\ \\
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3.
$y=-\frac{1}{2}x-3 \ \ \ |\times (-2) \\
x+2y=-6 \\ \\
-2y=x+6 \\
\underline{x+2y=-6 \ } \\
x=x+6-6 \\
x-x=6-6 \\
0=0 \\ \\
\boxed{\hbox{infinitely many solutions}}$

4.
$6x-3y=-18 \\
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6x-3y=-18 \\
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9y=36 \\
y=4 \\ \\
6x-3y=-18 \\
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6x=-18+12 \\
6x=-6 \\
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\boxed{(x,y)=(-1,4) \Leftarrow \hbox{one solution}}$

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3 years ago

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masya89 [10]

Answer:

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Step-by-step explanation:

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3 years ago

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Find the constant of variation for this equation y=4x

Fantom [35]

<span>the number 4 in the equation y/x = 4 is called the constant of variation The equation y/x = 4 can also be written in the equivalent form y = 4x hopefully this helps </span>

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3 years ago

Which situation CANNOT be represented by this equation? 4x+7=314x+7=31​

Which situation CANNOT be represented by this equation? 4x+7=314x+7=31