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Mrs. Bai spent twice as much money as Alice on their shopping trip. If they spent a total of $386.16, how much did Mrs. Bai Spend?

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Mrs. Bai spent $386.16 - Alice's amount

$386.16 - x = 2x
2x + x = 386.16
3x = 386.16
x = $128.72
Mrs. Bai spent $257.44

Did you know?

Did you know that to find out how much Mrs. Bai spent on their shopping trip, we can use a simple equation? Let's say Alice spent a certain amount, which we'll call "x." According to the information given, Mrs. Bai spent twice as much as Alice. This means Mrs. Bai spent 2 times "x," or 2x. If the total amount spent by both of them is $386.16, we can add Alice's and Mrs. Bai's expenses together and set it equal to the total. So, x + 2x = 386.16. Combining like terms, we get 3x = 386.16. To isolate x, we divide both sides of the equation by 3, giving us x = 386.16/3. Now, to find out how much Mrs. Bai spent, we simply multiply her expenses by 2: 2*(386.16/3). After doing the calculations, we find that Mrs. Bai spent $257.44 on their shopping trip.