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3 years ago

Helpp me hw is so stressing

Mathematics

1 answer:

den301095 [7]3 years ago

7 0

Answer:

C and D

Step-by-step explanation:

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Which pair of words describes this system of equations 3y=9x-6 2y+6x=4

pishuonlain [190]

Answer:

Consistent and dependent

Step-by-step explanation:

Given

$3y = 9x - 6$

$2y + 6x = 4$

Required

The words that describe the equations

Make y the subject in (2)

$2y + 6x = 4$

Collect like terms

$2y = 4 - 6x$

Divide through by 2

$y = 2 - 3x$

Substitute: $y = 2 - 3x$ in (1)

$3y = 9x - 6$

$3(2 - 3x) = 9x - 6$

$6 - 9x = 9x - 6$

Collect like terms

$9x+9x = 6+6$

$18x = 12$

Solve for x

$x = \frac{12}{18}$

Simplify

$x = \frac{2}{3}$

Substitute $x = \frac{2}{3}$ in $y = 2 - 3x$

$y = 2 - 3*\frac{2}{3}$

$y = 2 - 2$

$y =0$

So, we have:

$x = \frac{2}{3}$ and $y =0$

<em>The system is consistent because it has at least 1 solution</em>

<em>The system is dependent because it has more than 1 solution</em>

6 0

3 years ago

What is least common multiple or 3 and 8?

vladimir1956 [14]

Of*

Also, it's 24 units of whatever.

3 0

3 years ago

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The base lengths of a trapezoidal coffee table are 6 feet and 8 feet. The height is 5 feet. What is the area of the coffee table

den301095 [7]

A = (a+b)h/2

A = 6

B = 8

H = 5

A = (6+8)5/2

A = 14(2.5)

A = 35

The area of the coffee table is 35 sq. feet.

7 0

4 years ago

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What is a variable.

Rainbow [258]

Answer:

A variable is a quantity that may change within the context of a mathematical problem or experiment.

Step-by-step explanation:

5 0

2 years ago

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tankabanditka [31]

Answer: A translation 5 units to the left

Step-by-step explanation: I’m built different

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4 years ago