Evaluate the algebraic expression w + 2z when w = 12, x = 10, y = 5 and z = 9. A. 35 B. 30 C. 28 D. 23
2 answers:
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Answer:
For the first 30 minutes, we will have a line with a given steepness, this will represent the 30 minutes riding at a fast pace.
Then he stops for 20 minutes, we will represent this with a constant line.
Then he again moves for another 30 minutes, but with a slower pace than in the first 30 minutes, then this line will be less steep than the first line.
A sketch of this situation can be seen below.
