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2 years ago

CAN ANYONE HELP ME!!! THIS IS SO HARD

1 answer:

5 0

The studio Cost per day as a function of the number of hours used by the sound technician and the inequality which models the data is :

T(n) = 225 + 80n
$205 ≤ (225 + 80n) ≤ $545

<u>Total studio cost</u> :

(studio fee per day + sound technician fee per hour)

If the Number of hours spent in studio = n

Total studio cost, T(n) = 225 + 80n

Amount at hand = $205

Additional earning from pre-orders = $340

This means that minimum amount Jenna can afford = amount at hand = $205

The maximum amount Jenna can afford = (Amount at hand + additional earning) = ($205 + $340 = $545)

Therefore in other to afford studio cost :

Minimum ≤ Studio cost ≤ maximum amount

$205 ≤ (225 + 80n) ≤ $545

Learn more :brainly.com/question/15748955

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4 years ago

Find the slope of the slope through the points (-4 , -4) and (2,5)

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3 years ago

HELP!!

Alekssandra [29.7K]

Answer: a) $25x+30y=221.25\\5x+45y=191.25$

b) Cost of a macadamia nut chip cookie is $33.93 and the cost of triple chocolate cookie. is $3.77

c) Elimination method because it enables us to eliminate one of the variables.

Step-by-step explanation:

Let x be the cost of macadamia nut chip cookie and y be the cost of triple chocolate cookie.

Then according to the question we have the following equations:-

$25x+30y=221.25..................(1)\\5x+45y=191.25.......................(2)$

Multiplying 5 on both sides of the equation (2), we get

$25x+225y=956.25$ ...............(3)

By using elimination method, subtract equation (1) from (3) we get

$195y=735\\\Rightarrow\ y=3.77$

Substitute the value of y in (2), we get

$5x+45(3.77)=191.25\\\Rightarrow\ 5x=191.25-169.65\\\Rightarrow\ x=33.93$

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