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1)12x+3=11x+9
2)2x-10=65-x
3) 2x+3x+20=180
4) 17x-4=12+15x
5)13x+9=14x+2
6) 13x+9=14x+2

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions