Question

12. The cost in dollars of renting a car for d days is
given by c(d) = 22d + 25. The cost in dollars of
renting a hotel room for d days is given by
h(d) = 74d.
a. What does (c + h)(d) represent in this
situation? Write and simplify the equation
for (c + h) (d)
b. For what value of d is (c + h)(d) = 600? What
does this value of d represent in this situation?

ONLY 12. B. PLEASE!! NEED BY TODAY

Answer 1

Answer:

12b.) d ≈ 6 (d = 5.9895833) and d represents the number of days you're renting for.

Step-by-step explanation:

Set up an equation:

(c + h)(d) = 600

(c + h)(d) = 96d + 25

96d + 25 = 600

Subtract 25 on both sides to isolate the d term:

(96d + 25) - 25 = (600) - 25

96d = 575

Divide by 96 on each side to fully isolate d:

(96d) ÷ 96 = (575) ÷ 96

d ≈ 5.9895833

Approximate to: d = 5.9896 or 6 (depending on how exact your answer has to be)

The value of d in this situation represents the number of days you're renting for.

Hope this helps! I'd appreciate brainliest but if not that's fine!