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3 years ago

An equation is shown

Mathematics

1 answer:

notka56 [123]3 years ago

3 0

Answer: The answer is A. n=11.

Step-by-step explanation: To find the value of n in the equation, you’ll need to isolate the variable by dividing each side by factors that don't contain the variable.

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The graph of y=-3x+4 is:

kirill [66]

Answer:

Step-by-step explanation:

umm ..it's right i think

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3 years ago

What shape is this lolll

Anna71 [15]

Answer:

Cube

Step-by-step explanation:

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Ella purchased a game that was on sale for 12% off. The sales tax in her county is 6%. Let y represent the original price of the

Vera_Pavlovna [14]

y: original price (in dollars)

0.12y: amount of discount (in dollars)

sale price: y - 0.12y = 0.88y

sales tax on this sale price: (0.06)(0.88y)

final cost: 0.88y + (0.06)(0.88y) = 0.88y(1+0.06) = 0.9328y

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3 years ago

Solve the following proportions X/5=8/120

frez [133]

Answer:

x 1/3

Step-by-step explanation:

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3 years ago

How do you work out this equation

Gnom [1K]

Answer:

x is equal to negative one, and y is equal to negative four.

Step-by-step explanation:

You can do this by solving one of the equations by either x or y, then substituting it into the other. Let's solve the second one for y:

$2y = 3x - 5\\y = \frac{3x - 5}{2}$

Now we'll substitute that into the first equation:

$9x - 2y = -1\\9x - 2(\frac{3x - 5}{2}) = -1\\9x - 3x + 5 = -1\\6x + 5 = -1\\6x = -6\\x = -1$

So we now know that x is equal to -1. We can simply substitute that into one of the original equations to find y:

$2y = 3x - 5\\2y = 3(-1) - 5\\2y = -3 - 5\\2y = -8\\y = -4$

We now know that x is equal to -1, and y is equal to -4. We can also check our answer by plugging that -4 into the other equation, and see if we still get -1:

$9x - 2y = -1\\9x - 2(-4) = -1\\9x + 8 = -1\\9x = -1 - 8\\9x = -9\\x = -1$

So we know that our answer is correct.

3 0

3 years ago