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4 years ago

What is the solution to the system of equations?

Mathematics

1 answer:

Scilla [17]4 years ago

4 0

Answer:

A: There is no solution

Step-by-step explanation:

This is not a very likable question.

Y=3x-4

9x-3y=14

Put the y value from the first equation into the second.

9x - 3(3x - 4) = 14 Remove the brackets

9x - 9x + 12 = 14 Combine like terms on the left

12 = 14 When you get this kind of conclusion, that means there is no solution. I'll graph these two for you.

Blue: y =3x - 4

Green: 9x - 3y = 14

They never touch they never meet: they are parallel. They don't give a solution.

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Which inequality best represents the situation? A contractor charges a flat rate of $150 plus $6 per square foot to install conc

Studentka2010 [4]

The answer would be D) 150 + 6x ≤ 2500.

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3 years ago

A circular flower bed is m in diameter and has a circular sidewalk around it that is m wide. Find the area of the sidewalk in sq

Bess [88]

Answer:

Step-by-step explanation:

$A=\frac{\pi d^2}{4}\\ \\ A=\frac{\pi}{4}((2m)^2-m^2)\\ \\ 0.785(4m^2-m^2)\\ \\ 0.785(3m^2)\\ \\ A=2.355m^2$

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3 years ago

If the volume of a box is 1/8 cm^2 what are the lengths of its sides

mrs_skeptik [129]

Answer:

(1/2) cm = x

Step-by-step explanation:

This box has the shape of a cube. The formula for the volume of a cube is V = x^3, where x is the length of any one side of the cube.

Here the volume is (1/8) cm^3. We set this equal to x^3 and solve for x:

Taking the cube root of both sides, we get:

(1/2) cm = x

6 0

4 years ago

ANSWER PLS PLS PLS<br><br> Solve the proportion!<br><br> <img src="https://tex.z-dn.net/?f=-%5Cfrac%7B6%7D%7B7%7D%3D%5Cfrac%7Bn%

aliya0001 [1]

To solve this, you need to isolate/get the variable "n" by itself in the equation:

$-\frac{6}{7} =\frac{n}{21}$ Multiply 21 on both sides to get "n" by itself

$(21)(-\frac{6}{7} )=(21)\frac{n}{21}$

$-\frac{126}{7} =n$ Simplify the fraction

-18 = n

8 0

4 years ago

Ed buys a box of eggs costing £2.80, two packs of bacon for £2.40 each and two tins of baked beans. He pays with a £10 note and

guajiro [1.7K]

Answer:

£0.8

Step-by-step explanation:

egg = 2.80

Bacon = 2 * 2.40 = 4.80

Baked beans = 2 tins

Amount issued = 10

Change obtained = 80p = 0.8

Let cost per baked beans = x

Hence,

2.80 + 4.80 + 2x = 10 - 0.8

7.60 + 2x = 9.20

2x = 9.20 - 7.60

2x = 1.6

x = 1.6 / 2

x = 0.8

Hence, a tin of baked beans cost £0.8

6 0

3 years ago

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