The value of y varies directly with x and if x = 104 and y = 78. what is the value of x when y= 39

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x