d = 16 - x 30 The equation shown gives the estimated amount of diesel d , in gallons, that

Question

d = 16 - x 30 The equation shown gives the estimated amount of diesel d , in gallons, that remains in the gas tank of a truck after being driven x miles, where 0 &#8804; x &#8804; 480 . What is the estimated amount of diesel, in gallons, that remains in the gas tank of the truck when x = 300 ?

Accepted Answer

Choice B is correct. It&rsquo;s given that the equation d = 16 - x 30 gives the estimated amount of diesel d , in gallons, that remains in the gas tank of the truck after being driven x miles. Substituting 300 for x in the given equation yields d = 16 - 300 30 , which is equivalent to d = 16 - 10 , or d = 6 . Therefore, the estimated amount of diesel that remains in the gas tank of the truck when x = 300 is 6 gallons. Choice A is incorrect. This is the estimated amount of diesel, in gallons, that will remain in the gas tank of the truck when x = 480 , not when x = 300 . Choice C is incorrect. This is the estimated amount of diesel, in gallons, that will remain in the gas tank of the truck when x = 60 , not when x = 300 . Choice D is incorrect. This is the estimated amount of diesel, in gallons, that will remain in the gas tank of the truck when x = 0 , not when x = 300 .

Question 849940