Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go towards paints. Each tu
be of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy. This is the inequality I need to figure out pls help
1 answer:
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Answer:
See the attached figure which represents the problem.
As shown, AA₁ and BB₁ are the altitudes in acute △ABC.
△AA₁C is a right triangle at A₁
So, Cos x = adjacent/hypotenuse = A₁C/AC ⇒(1)
△BB₁C is a right triangle at B₁
So, Cos x = adjacent/hypotenuse = B₁C/BC ⇒(2)
From (1) and (2)
∴ A₁C/AC = B₁C/BC
using scissors method
∴ A₁C · BC = B₁C · AC
