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Crank
3 years ago
15

Directions - solve the liner system. enter your answer as an ordered pair. 2x + 3y = 31 y = x + 7

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

(1) 2x + 3y = 31 y

(2) 2x + 3y = x + 7

(3) 31y = x + 7

(3) x = 31y - 7

(2) 2(31y - 7) + 3y = 31y - 7 + 7 ; 62y - 14 + 3y = 31y ; 34y = 14 ; y = 14/34 ; y = 7/17

(3) x = 31y - 7 ; x = 31*(7/17) - 7 ; x = (217 - 119)/17 = 98/17

x = 98/17 ≈ 5.76

y = 7/17 ≈ 0.41

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Sunny_sXe [5.5K]

Answer:

x + 14.7

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5 0
2 years ago
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3 years ago
20.There is an 80% chance David will eat a healthy breakfast and a 25% chance that it will rain. If these events are independent
Mariulka [41]

Answer:

A. 20%

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4 0
3 years ago
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5 0
2 years ago
that batch calls for 5 cups of flour and 4 teaspoons of vanilla if i use 6 teaspoons of vanilla how many cups will i need
Eva8 [605]
5 cups & 4 teaspoons
? cups & 6 teaspoons


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4 0
2 years ago
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