2 years ago

How many solutions does the following system of equations have? {4x + 6y = 24 2x + 3y = 12

Mathematics

1 answer:

Mila [183]2 years ago

5 0

Answer:

Infinitely many solutions

Step-by-step explanation:

Note that 2(2x+3y=12) is 4x+6y=24, which is the first equation. Therefore, by canceling the equations out, you have 0=0, which means whatever one side equals, the other side ALWAYS equals that.

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Question 3: Marla bought one necklace and two bracelets for $67.50. Use the following information to determine the amount she pa

Lera25 [3.4K]

Each bracelet was approximately 20.25

Here is my work:

67.50 - 27 = 40.5

40.5 divided by 2 = 20.25

Hope this helps!

6 0

3 years ago

Read 2 more answers

|x-1| if x>1<br> how do you simplify this

JulsSmile [24]

Use the definition of absolute value.

$|x| = \begin{cases} x & \text{if } x \ge0 \\ -x & \text{if } x < 0 \end{cases}$

The absolute value is always non-negative. So if $x$ is already non-negative, $|x|=x$ is unchanged. But if $x$ is negative, then $|x|=-x$ because multiplying $x$ by -1 makes it positive.