Will mark brainliest if right

a school is preparing a field trip for 450 students. the transportation company has 9 buses of 30 seats each and 12 buses of 50 seats. on the day of the trip only 11 drivers can come. if it costs $750 to rent a large bus and $500 to rent a small bus, how many buses of each type should the school use to minimize travel expenses?

They should use 9 large buses

Step-by-step explanation:

First; determine the cost per person for each bus.

$500 / 30 seats = $16.66 per student

$750 / 50 seats = $15.00 per student

Therefore it is cheaper for the school to use the large buses exclusively.

They can book 9 large buses at the cost of ($750 * 9) = $6,750 and not use all the available drivers.

Another alternative that some might use would be:

30x + 50x = 450

80x = 450

x=5.625

30(5) + 50(6)

150+300 = 450

($500 * 5) + ($750*6) =

$2500 + 4500 = $7,000

The price though is more that just booking 9 buses and thus not the correct answer.

the correct answer is a.) bc< mn 5 stars if this you : )

step-by-step explanation:

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

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