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Phoenix [80]
3 years ago
10

Andy wants to buy 20 candy bars. If there is a special sale for buy 2 candy bars get one free. How much will it cost to buy 20 b

ars? PLZ HELP.44 points.
Mathematics
2 answers:
balandron [24]3 years ago
8 0

Answer:

Well, IDK what the price of the candy bar is, but let's say it's a buck. Pretty much, you are buying 3 bars for $2.00. 6 bars for $4.00, 9 bars for $6.00, 12 bars for $8.00, 15 bars for $10.00, 18 bars for $12.00, and 20 bars fr $14.00

Step-by-step explanation:

The final answer is $14.00 if the bars are a buck a piece

igomit [66]3 years ago
7 0

Answer:

what is the cost of 1 candy bar?

Step-by-step explanation:

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A rectangular storage container with an open top is to have a volume of 10 m3. the length of this base is twice the width. mater
BartSMP [9]
Refer to the diagram shown below.

The volume of the container is 10 m³, therefore
x*2x*h = 10
2x²h = 10
h = 5/x²        (1)

The base area is 2x² m².
The cost is $10 per m², therefore the cost of the base is
(2x²)*($10) = 20x²

The area of the sides is
2hx + 2(2xh) = 6hx = 6x*(5/x²) = 30/x m²
The cost is $6 per m², therefore the cost of the sides is
(30/x)*($6) = 180/x

The total cost is
C = 20x² + 180/x

The minimum cost is determined by C' = 0.
That is,
40x - 180/x² = 0
x³ = 180/40 = 4.5
x = 1.651
The second derivative of C is
C'' = 40 + 360/x³
C''(1.651) = 120 >0, so x = 1.651 m yields the minimum cost.

The total cost is
C = 20(1.651)² + 180/1.651 = $163.54

Answer: $163.54

7 0
2 years ago
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Shkiper50 [21]

Answer:

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Step-by-step explanation:

When dividing numbers with powers, it is handy to remember that

x^y/x^z=x^y^-^z

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5^8/5^6=5^8^-^6 = 5^2

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2 years ago
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Answer:

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2 years ago
Tom earned $72 walking dogs for 6 hours. How many total hours will it take tom to earn $96 in all? Solve using unit rates
slava [35]

Answer:

8 hours

Step-by-step explanation:

Step one:

Given data

Tom earned $72 walking dogs for 6 hours

amount earned = $72

time taken = 6 hours

Required

The time taken to earn $96

Step two:

let us find the unit rate of his earning

unit rate = 72/6

= 12 per hour

 

In 1 hour Tom earns $12

in x hours he will earn $96

cross multiply we have

96*1= 12x

divide both sides by 12

x= 96/12

x=8 hours

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3 years ago
Which statements are true for the image below? Check all that apply.
Arlecino [84]

Answer:

its 1,3,4,and 7

Step-by-step explanation:

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