The system of equations is solved using the linear combination method. What does 0 = −12 mean regarding the solution to the syst
2 answers:
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Answer:
y = 36
Step-by-step explanation:
Given y varies directly as z and inversely as x then the equation relating them is
y = ← k is the constant of variation
To find k use the condition y = - 18, z = 3 when x = 6 , then
- 18 = ( multiply both sides by 6 )
- 108 = 3k ( divide both sides by 3 )
- 36 = k
y = ← equation of variation
When x = 5 and z = - 5, then
y = =
= 36