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andrezito [222]

3 years ago

14

The cost of renting a car for a day is given by the linear function C(x)=0.09x +27, where C(x) is in dollars and x is the number

of miles driven. Find the cost of driving the car 130 miles

1 answer:

gulaghasi [49]3 years ago

4 0

Answer:

C(x) = 38.7

Step-by-step explanation:

C(x)= 0.09(130)+27

C(x)= 11.7+27

C(x)= 38.7

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graph C

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A tank initially contains 40 ounces of salt mixed in 100 gallons of water. a solution containing 4 oz of salt per gallon is then

stellarik [79]

Let $A(t)$ be the amount of salt in the tank at time $t$ . We're given that $A(0)=40$ . The rate at which this amount changes is given by

$A'(t)=\dfrac{5\text{ gal}}{1\text{ min}}\cdot\dfrac{4\text{ oz}}{1\text{ gal}}-\dfrac{5\text{ gal}}{1\text{ min}}\cdot\dfrac{A(t)\text{ oz}}{100+(5-5)t\text{ gal}}$

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