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Marta_Voda [28]
4 years ago
13

Lane is buying fish for his aquarium. Tetras cost $5 each and cichlids cost $19 each. Lane would like to have at least 8 fish in

all, but he can spend no more than $100 give a reasonable solution
Mathematics
1 answer:
Nady [450]4 years ago
7 0

Answer:

Buy 4 of Tetra fish and 4 Cichlids

Step-by-step explanation:

First you can figure out that if u buy 8 of the tetras, you will have 60 left. Then finding the difference of price between the fishes, you get 14. Then dividing 14 by 60, you get 4.28. This means you can replace 4 of your Tetras with Cichlids. Therefore you will spend 96, having 4 left

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in complete sentences, explain the process in which this equation would be solved. “Mr Crenshaw can grade one set of papers in 1
hammer [34]

Answer:

6 minutes

Step-by-step explanation:

Mr Crenshaw checks at a rate of 1/10 and Mr. Aguirre checks at a rate of 1/15.

If they work together, they will be checking at a combined rate of:

1/10 + 1/15 = [3(1) + 2(1)]/30

= 5/30 = 1/6

Their combined rate is 1/6 which means they check one set in 6 minutes

3 0
3 years ago
SHOW YOUR WORK! Marking the best response with brainliest:) thank u
sdas [7]

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

The length is 3x + 7

The width is 2x + 2

The perimeter is

<h3>2( 3x + 7) + 2( 2x + 2)</h3>

Simplify

6x + 7 + 4x + 4

Group like terms

6x + 4x + 7 + 4

We have the final answer as

<h3>10x + 11</h3>

Hope this helps you

6 0
3 years ago
What is the combined length of all the buttons longer than 1 inch
muminat

Answer:

2\frac{1}{2}  inches

Step-by-step explanation:

The "x" represents the number of buttons.

There are 2 sizes longer than 1 inch:

1\frac{1}{8} in  and  1\frac{1}{4} in

There are NO 1  1/8 inch buttons

THere are two 1  1/4 inch buttons

Hence the combined length would be:

1\frac{1}{4}+1\frac{1}{4}=2\frac{2}{4}=2\frac{1}{2} inches

5 0
3 years ago
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Which Touhou Character has the theme "Lunar Clock ~ Luna Dial"
Debora [2.8K]

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Step-by-step explanation:

7 0
3 years ago
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Your company is planning to air a number of television commercials during a television network's presentation of the an awards s
Sunny_sXe [5.5K]

This question is incomplete, the complete question is;

Your company is planning to air a number of television commercials during a television network's presentation of the an awards show. The network is charging your company $1.9 million per 30-second spot. Additional fixed costs (development and personnel costs) amount to $500,000, and the network has agreed to provide a discount of $160,000√x for x television spots.  

Required:

Write down the cost function C, marginal cost function C’, and average cost function

Answer:

- The  the cost function is 500,000 + 1,900,000x - 160,000√x

- the marginal cost function is 1,900,000 - (80000 /√x  )

- The  average cost function is 1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

Step-by-step explanation:

Given the data in the question;

cost per spot = $1.9 million

Additional cost =  $500,000

discount = $160,000√x

 Let C(x) represent the cost ;

Cost x television spot = cost per spot × Number pf spots

Cost x television spot = $1.9 million × x

Cost x television spot = $1,900,000x

Now, the television set total cost will be;

C(x) = television cost + additional cost - discount  

C(x) = 500,000 + 1,900,000x - 160,000√x

Therefore, The  the cost function is 500,000 + 1,900,000x - 160,000√x

Marginal Cost Function;

Cost function C(x) = 500,000 + 1,900,000x - 160,000√x

we differentiate with respect to x

C'(x) = d/dx( 500,000 + 1,900,000x - 160,000√x )

= d/dx( 500000 ) + 1,900,000d/dx -160,000 d/d( √x )

= 0+ 1,900,000(1) -160,000( 1 / 2√x )

= 1,900,000 - (160,000 / 2√x  )

= 1,900,000 - (80000 /√x  )

Therefore, the marginal cost function is 1,900,000 - (80000 /√x  )

Average cost function;

Average cost function = C(x) / x

we substitute

Average cost function = [500,000 + 1,900,000x - 160,000√x] / x

=  [500,000 / x ] + [1,900,000x / x ]  - [ 160,000√x / x ]

=  [ 500,000 / x ] + 1,900,000 - [ 160,000√x / x ]

=  1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

Therefore, The average cost function is 1,900,000 + [ 500,000 / x ] - [ 160,000 / √x ]

5 0
3 years ago
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