Brian has reduced his cholesterol level by 20% by following a strict diet and regular exercise. If his original level was 220, w
hat is his cholesterol level now?
2 answers:
Answer:
Option B is the answer.
Step-by-step explanation:
Actual cholesterol level of Brain was 220.
He reduced his cholesterol level by 20% By following a strict diet and regular exercise.
So we have to calculate current level of his cholesterol.
Since 20% of 220 = = 44
So after reduction of 44 units cholesterol level will be 220 - 44 = 176
Option B 176 is the answer.
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Expression consists of numbers, variables, and mathematical operations. The expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
<h3>What is an Expression?</h3>In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression is given to you is,
Now, if we solve the expression it can be written as,
substituting the value of w, we will get,
Hence, the expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
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