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katen-ka-za [31]
3 years ago
8

Please help me struggling rn

Mathematics
2 answers:
Liula [17]3 years ago
8 0

Answer:

I think C

Step-by-step explanation:

MrRissso [65]3 years ago
3 0

Step-by-step explanation:

yeah option C is correct .

as for option one the expression will be,

145/11.60

for, option B the equation will be,

let just say he pays 11.60$ in monthly dues.

11.60$ × 12 ( as 1 yr contains 12 months ) + 145 ( to join the gym)

= ( 11.60 × 12 ) + 145

and for option D,

if cost of each coupon is 11.60$

so cost of 145 coupon = 11.60$ × 145

so option C is correct!

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A ferry operator takes tourists to an island.
Oksanka [162]

The fare of $(20 - 2.5) = $17.5 will maximize the total fare.

<h3>What is Differentiation?</h3>

Differentiation means the rate of change of one quantity with respect to another. The speed is calculated as the rate of change of distance with respect to time.

Here, The operator for a round-trip fare of $20, carries an average of 500 people per day.

It is estimated that 20 fewer people will take the trip, for each $1 increase in fare.

for $x  increase in fare, 20x less people will take the trip and at that time the total fare F is given by  

f(x) =(20 + x)(500 - 20x)

f (x) = 10000 + 100x - 20x²

For f(x) to be maximum, the condition is dy/dx = 0

 100 - 40x = 0

⇒ x = 2.5  

Thus, the fare of $(20 - 2.5) = $17.5 will maximize the total fare.

Learn more about Differentiation from:

brainly.com/question/24062595

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3 0
2 years ago
Solve for c: <br> 12 - 9 + c = 12
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Step-by-step explanation:

12 - 9 + c = 12

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Hope this helps.!

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arlik [135]

Answer:

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Step-by-step explanation:

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