What two numbers multiply to 18 but add to get -5?
1 answer:
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If x varies directly with y, then :
● Increase in x results in increase of y
● Decrease in x results in decrease of y
● It is represented by : x ∝ y
Here : x₁ = 6 and y₁ = 15 and x₂ = x₂ and y₂ = 20
Substituting the values we get :
<u>Answer</u> : x = 8 when y = 20