Help please. I'm struggling in algebra 1

1 answer:

4 0

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

You might be interested in

Which of the following relations represent a function?

STALIN [3.7K]

B
You can only use the same value for x once

8 0

3 years ago

Read 2 more answers

Francine has a picture whose length is its width. She wants to enlarge the picture to have an area of 192 in2. What will the dim

8_murik_8 [283]

1. The measures of the length and the width of the picture are equal, so the picture is square shaped.

2. The enlarged picture will still be a square, since when we enlarge, we enlarge all distances with the same factor.

3. Let the dimensions of the large picture be a (length) by a (width)

4. Area of picture = $a^{2}=192 in^{2}$

$a= \sqrt{192} = \sqrt{16*12}= \sqrt{16*4*3}=4*2* \sqrt{3}=8\sqrt{3} (feet)$

Answer: the dimensions are $8\sqrt{3} (feet)$ by $8\sqrt{3} (feet)$

6 0

3 years ago

What is the mean mark of 847 ÷ 30?

user100 [1]

Answer:

Step-by-step explanation:

8 0

3 years ago

Anyone help me out would mean a lot thank you

topjm [15]

Answer:

It would be D.

Step-by-step explanation:

Domain is another word for x, basically. As range is for y.

Therefore, all of the x's are listed in option D.

7 0

3 years ago

A (5,3) and B(3,-2) are two fixed points. Find the equation of the locus of P, so that the

andre [41]

Answer:

$37=5x-2y,\,1=5x-2y$

Step-by-step explanation:

If $(x_1,y_1),\,(x_2,y_2),\,(x_3,y_3)$ are coordinates of a triangle then area of a triangle is equal to $\frac{1}{2}|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|$