Karen is a product tester at Lulu's Lotions & More. She's testing a new line of bath fizzers and
needs to measure how quickly they dissolve in water. The first bath fizzer she tested weighed
5 ounces to start. After one minute in water, it decreased by half, and Karen expects this rate
of decrease to continue.
Write an exponential equation in the form y = a(b)* that can model the weight of the bath
fizzer, y, after x minutes in water.
Use whole numbers, decimals, or simplified fractions for the values of a and b.
y = 5(0.5)*
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How much will the bath fizzer weigh after 3 minutes in water?
ounces