1. Find the required value. a. If y varies indirectly as x and y = 15...

 

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1. Find the required value. a. If y varies indirectly as x and y = 15 when x = 3, find y when x = 9. y= b. If y varies directly as x and inversely as the square of w, given that y = 100 when x = 4 and w = 6, find y when x = 75 and w = 5. y= 2. Ohm's law in a circuit says that the voltage V across a resistor R is related to the current I via V = IR. If a resistor of 2 ohms has a constant current through it that creates a voltage of 20V across the resistor, how many volts would go across the resistor if we replaced it with a 5 ohm resistor? 1. Find the required value. a. If y varies indirectly as x and y = 15 when x = 3, find y when x = 9. y= b. If y varies directly as x and inversely as the square of w, given that y = 100 when x = 4 and w = 6, find y when x = 75 and w = 5. y= 2. Ohm's law in a circuit says that the voltage V across a resistor R is related to the current I via V = IR. If a resistor of 2 ohms has a constant current through it that creates a voltage of 20V across the resistor, how many volts would go across the resistor if we replaced it with a 5 ohm resistor?