Answer:
x = 5, y = -1/2
Step-by-step explanation:
3.5x - 5y = 20
3x + 4y = 13 multiply by 1.25 so the y's match up (you could match x's too)
3.75x + 5y = 16.25
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3.5x - 5y = 20
3.75x +5y = 16.25
7.25x + 0y = 36.25 you can add or subtract here (on this equation you add)
7.25x=36.25
x=5 So now we have x=5 and to find y we can just plug in x into one of the equations
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3(5) + 4y = 13
15 + 4y = 13
4y = -2
y = -1/2
x = 5, y = -1/2
Then you can plug in both to check your answers.
The inverse version of a number is it's opposite. The opposite of 3 is -3
Answer:
1. C. 2. D.
Step-by-step explanation:
Step-by-step explanation:
<h3>
<u>Given</u><u> </u><u>Information</u><u> </u><u>:</u></h3>
- Area of the square = 37 units²
<h3><u>To </u><u>calculate</u><u> </u><u>:</u></h3>
<h3><u>Calculation </u><u>:</u></h3>
★ Area of square = (Side)²
<em>Substitute</em><em> </em><em>the </em><em>values</em><em> </em><em>we </em><em>have</em>.
→ 37 cm² = (Side)²
→ √(37 cm²) = Side
→ 6.08276253 cm = Side
