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4 years ago

2x +8y =20 -5x-20y=-50

Mathematics

2 answers:

faltersainse [42]4 years ago

6 0

Ax + by =12; 2x + 8y = 60. ax + by = 12; 2x + 8y = 60

Vladimir [108]4 years ago

3 0

System of Equations.
You can either substitute or eliminate a variable.

Substitue:
2x +8y =20
÷2 ÷2 ÷2
x +4y =10
x = -4y +10 (plug this into the second equation)
-5(-4y +10) -20y = -50 (distribute)
20y -50 -20y = -50
-50 = -50
0 = 0

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2 years ago

Aaron wants to mulch his garden. His garden is x^2+18x+81 ft^2 One bag of mulch covers x^2-81 ft^2 . Divide the expressions and

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Answer:

Step-by-step explanation:

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