Work out the value of y IF: w = 400 and a = 5: Equation: y = w - 2a²
Question
Work out the value of y IF: w = 400 and a = 5: Equation: y = w - 2a²
Solution
Sure, let's solve the equation step by step:
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First, we need to substitute the given values of w and a into the equation. The equation is y = w - 2a².
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Substitute w = 400 and a = 5 into the equation. So, y = 400 - 2(5)².
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Now, calculate the value inside the bracket. 5² = 25. So, y = 400 - 2*25.
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Multiply 2 by 25, which equals 50. So, y = 400 - 50.
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Finally, subtract 50 from 400. So, y = 350.
Therefore, the value of y is 350.
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