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mixas84 [53]
2 years ago
5

I need help on this ? Please answer in the next couple minutes

Mathematics
1 answer:
Mila [183]2 years ago
7 0

Answer:

Dino's: 1 sandwich = 4, 2 sandwiches= 4 *2 = 8, 3 sandwiches = 4 * 3 = 12, 4 sandwiches = 4 * 4 = 16

Carla's: 1 sandwich = 8, 2 sandwiches= 8 *2 = 16, 3 sandwiches = 8 * 3 = 24, 4 sandwiches = 8 * 4 = 32

Step-by-step explanation:

multiply the quantity of sandwiches by the price per each sandwich and you get your answers.

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20%

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3 years ago
A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Three h
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Answer:

  • 50 ft by 75 ft
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Step-by-step explanation:

Let x represent the length of the side not parallel to the partition. Then the length of the side parallel to the partition is ...

  y = (300 -2x)/3

And the enclosed area is ...

  A = xy = x(300 -2x)/3 = (2/3)(x)(150 -x)

This is the equation of a parabola with x-intercepts at x=0 and x=150. The line of symmetry, hence the vertex, is located halfway between these values, at x=75.

The maximum area is enclosed when the dimensions are ...

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That maximum area is 3750 square feet.

_____

<em>Comment on the solution</em>

The generic solution to problems of this sort is that half the fence (cost) is used in each of the orthogonal directions. Here, half the fence is 150 ft, so the long side measures 150'/2 = 75', and the short side measures 150'/3 = 50'. This remains true regardless of the number of partitions, and regardless if part or all of one side is missing (e.g. bounded by a barn or river).

6 0
3 years ago
What’s 4/5 divided by 3
Valentin [98]

Answer:

\frac{4}{15}

Step-by-step explanation:

remember when dividing with fractions, you are multiplying by the reciprocal.

this means

\frac{4}{5} \div3=\frac{4}{5}*\frac{1}{3}=\frac{4}{15}

6 0
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