Q. Four years ago I was 11 times as old as my dog. Now I am 6 times as old. How old am I?
Translate Conditions into Equations: Let's denote my current age as x and my dog's current age as y. We are given two conditions:1. Four years ago, I was eleven times as old as my dog.2. Now, I am six times as old as my dog.We can translate these conditions into two equations:Equation 1 (from condition 1): x−4=11×(y−4)Equation 2 (from condition 2): x=6×y
Solve for Relationship: Now, let's solve Equation 2 for 'x' to find the relationship between my age and my dog's age.x=6×yThis means that my current age is six times my dog's current age.
Substitute into Equation 1: Next, we substitute the expression for x from Equation 2 into Equation 1 to find y.$6×y - 4 = 11 \times (y - 4)\)Now we will solve for y.
Solve for Dog's Age: First, distribute the 11 on the right side of the equation: 6y−4=11y−44 Now, we will move all terms involving 'y' to one side and constants to the other side. 6y−11y=−44+4−5y=−40
Find My Current Age: Now, we divide both sides by −5 to solve for 'y':y=−40/−5y=8So, my dog is currently 8 years old.
Find My Current Age: Now, we divide both sides by −5 to solve for y:y=−5−40y=8So, my dog is currently 8 years old.Now that we know y, we can use Equation 2 to find x, which is my current age.x=6×yx=6×8x=48So, I am currently 48 years old.
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