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VLD [36.1K]
4 years ago
14

How to solve this equation using elimination

Mathematics
1 answer:
KengaRu [80]4 years ago
4 0
-10x-12y=32
+10x+50y=25
38y=57
Y=1.5
X=-5
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Select the answer choices that show two fractions that are equal. (Select two)..
Kruka [31]

Problem 1

Answers: Choice A, choice D

The formula you use is

a & c/d = (a*d+c)/d

To convert from mixed number form to improper fraction form.

So,

6 & 2/3 = (6*3+2)/3 = (18+2)/3 = 20/3

And also,

8 & 1/5 = (8*5+1)/5 = (40+1)/5 = 41/5

===============================================

Problem 2

Answer: Reflection

Think of how mirrors cause a reflection and this should help you remember the term better. If we reflect point A over some line L, to get point A', then the distance from A to L is the same from A' to L also.

5 0
3 years ago
Graph triangle XYZ with vertices X(0, -4), Y (4, -1), and Z(6, -3) on the coordinate grid.
gogolik [260]

Answer:

Step-by-step explanation:

6 0
3 years ago
What is<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B81%7D%20" id="TexFormula1" title=" \sqrt{81} " alt=" \sqrt{81} " align
azamat

Answer:

\:  \sqrt{81 }  = 9

Step-by-step explanation:

\sqrt{81 }  =   \sqrt{3 \times 3 \times 3 \times 3}   \\  = 3 \times 3 \\  =9

You have to prime factorise 81 and then you will get <u>9</u> as the answer.

8 0
3 years ago
Read 2 more answers
Pls help due in 40 minutes Pls I will give brainliest But pls only right answers
defon

Answer:

6. 15.2

Step-by-step explanation:

60.8 divided by 4 so the constant is 15.2 because 15.2 x 4 is 60.80

4 0
2 years ago
Read 2 more answers
Question 10
kozerog [31]

The regular selling price per unit for the laptop is $298.6.

<h3>How to calculate the price?</h3>

Let the regular price per unit be x.

The expense is 19% of the selling price and profit is 25% of the selling price. This will be illustrated as:

x + (19% × x) + (25% × x) = 430

x + 0.19x + 0.25x = 440

1.44x = 430

Divide

x = 430 / 1.44

x = 298.6

The price is $298.6

Learn more about cost on:

brainly.com/question/25109150

#SPJ1

7 0
1 year ago
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