3 years ago

How do I do this and work it out

Mathematics

1 answer:

stepladder [879]3 years ago

3 0

Do you know your coordinate plains??

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I can't figure out how to do this problem.

Marianna [84]

Have you tried multiplying 5(3)+2(2)+1?

15 + 4 + 1 = 20 ?

Im sorry I'm not real good with math.

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3 years ago

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What is the elimination to this solution i think its b

Blababa [14]

EXPLANATION:

To get the solution of the simultaneous equation, using the elimination method:

We will have the following steps:

Step 1:

Write the two equations:

$\begin{gathered} y=-\frac{1}{2}x+3 \\ y=-\frac{7}{2}x-3 \end{gathered}$

Step2: Subtract the two equations:

$\begin{gathered} y-y=-\frac{1}{2}x-(-\frac{7}{2}x)+3-(-3) \\ 0=-\frac{1}{2}x+\frac{7}{2}x+6 \\ \end{gathered}$

Step 3: Simplify the expression

$\begin{gathered} 0=3x+6 \\ 3x=-6 \\ x=-\frac{6}{3} \\ x=-2 \end{gathered}$

Step 4: Substitute x=-2 into the formula:

$\begin{gathered} y=-\frac{1}{2}x+3 \\ y=-\frac{1}{2}\times-2+3 \\ y=1+3 \\ y=4 \end{gathered}$

Therefore, the answer is

$(-2,4)$

Thus,

Option B is correct

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1 year ago

Solve for x and draw a number line. 3x−91>−87 AND 17x−16>18

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Answer:

I hope this will help!

Step-by-step explanation:

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4 years ago

Hans is planting a garden with snapdragons and daisies. The table shows some possible combinations of the two plants. If Hans pl

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The equation is $x+y=45$

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$\rightarrow x=16$ snapdragons

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Step-by-step explanation:

just did it got it right

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