luhmama
25.09.2020 •
Mathematics
A triangle has side lengths of (6.5r + 4.2)
centimeters, (2.4r - 9.8) centimeters, and (9.5s-5.2) centimeters. Which
expression represents the perimeter, in centimeters, of the triangle?
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Ответ:
Answer
31,200,000
Explanation
Firstly, calculate the constant of proportionality.
Al ∝ N
Al = kN Where Al = number of aluminium cans, k = constant and N = number of people using the can.
Al = kN
k = Al/N
= 120000/500
= 240
Equation becomes;
Al = 240N
For 130000 cans;
Al = 240 × 130000
= 31,200,000