Suppose the quantity x of super titan radial tires made available each week in the marketplace is related to the unit-selling price by the following equation where x is measured in units of a thousand and p is in dollars. $ p - \dfrac{1}{2}x^2 = 48 $ how fast is the weekly supply of super titan radial tires being introduced into the marketplace when x = 5, p = 60.5, and the price/tire is decreasing at the rate of $3/week? (round your answer to the nearest whole number.)

dx/dt = -3/5 time/week.

Explanation:

differentiating both sides w.r.t t time.

given

times / week

600 tires/week   OR dx/dt=-3/5 thousand tires/week

Explanation:

where x is measured in units of a thousand and p is in dollars. $ p - \dfrac{1}{2}x^2 = 48 $ How fast is the weekly supply of Super Titan radial tires being introduced into the marketplace when x = 5, p = 60.5, and the price/tire is decreasing at the rate of $3/week?

p-1/2x^2=48

differentiating both sides with respect to time

d/dt(p-1/2x^2)=d/dt(48)

dp/dt+x dx/dt=0

-3=5dx/dt

dx/dt=-3/5

recall that x is measured in units of thousands

dx/dt=-0.6*1000

dx/dt=600 tires/week

OR dx/dt=-3/5 thousand tires/week

the  600  quantity supply of Super Titan radial tires decreases per each week

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