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Romashka-Z-Leto [24]
2 years ago
12

Solve the system of equations 2x+4y=6 and 5y-2x=10

Mathematics
2 answers:
Aloiza [94]2 years ago
7 0

Answer:

1. x=−2y+3

2. \frac{5}{2} y - 5

Step-by-step explanation:

Leokris [45]2 years ago
5 0

Step-by-step explanation:

2x+4y = 6

-2x +5y = 10

9y = 16

y = 16/9

2x+ 4(16/9) = 6

2x +64/9 = 54/9

2x = -10/9

x = -5/9

wow those are ugly numbers

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Please help me with these. These are so hard.<br><br>​
LuckyWell [14K]

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about the second one... well, is a "fait accompli" that using the pythagorean theorem, if x = 8 and y = 5, the hypotenuse must be √(8² + 5²) = √(89), which is neither of those choices.

5, 8, 13 are no dice, namely 5² + 8² ≠ 13

25, 64, 17 is are no dice too, because 25² + 17² ≠ 64²

however, 5,12 and 13 are indeed a pythagorean triple

also is 39, 80, 89.

when looking for a pythagorean triple, recall that c² = a² + b².

so the longest leg is the sum of the square of the small ones.

so what you'd do is, check the small legs, square them, add them up, if they're indeed a pythagorean triple, they "must" add up to the longest leg.

4 0
3 years ago
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irina1246 [14]

Answer:

12 pieces of sausage can be cut from the 8 inch sausage if each piece is 2/3 of an inch.

Step-by-step explanation:

2/3 = 0.66

8 x 0.66 = 12.12

Round down to 12.

I hope this helped you! If it did, please consider rating my answer, pressing thanks, and marking as Brainliest. Have a great day!

7 0
2 years ago
Read 2 more answers
FYI, I don't have many points.
zimovet [89]

Answer:

ok i see that question it would be 3

Step-by-step explanation:

6 0
2 years ago
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Please answer ASAP! BRAINLIEST IF CORRECT!
mezya [45]

Answer:

63.66197728% or just 64% lol

Step-by-step explanation:

8 0
2 years ago
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