Answer
x = 2 and y = 3
Use substitution
3x = 15 - 3 (13 - 5x)
x = 2
Plug in x
3 (2) = 15 - 3y
y = 3
The Newfoundland weighs 45076 more grams the Springer spaniel.
Springer Spaniel = 20450 grams Cocker Spaniel = 12870 grams Newfoundland = 65526 grams. 65526 - 20450 = 45076
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Collect like terms
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Answer:
<h2>x = -4 ± 2√(3) </h2><h2 />
Step-by-step explanation:
Discriminant Δ = √(8²-4×(1)×(4)) = √(48) = √(4×12) = √(4)×√(12) = 2√(12)
then x = (-8 ± 2√(12))÷2 = -4 ±√(12) = -4 ±√(3×4) = -4 ± 2√(3)