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Hatshy [7]
3 years ago
6

A rectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. It costs $1.80 per square

foot to build the base and $0.55 per square foot to build the sides. Write the cost C of constructing the box as a function of x, y, and z.
Mathematics
1 answer:
vovikov84 [41]3 years ago
5 0

Answer:

 The dimensions are

x=length

y=width

z=height

cost of construction will be

= Area of the base * cost of the base + 2*Area of the sides of on type *cost

+ 2*Area of the side of second type*cost

Total cos=x*y*1.80+ 2*y*z*0.55 + 2*x*z*0.55

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Anna007 [38]

Answer:

6 ≤ x and 0 ≤ x - 6

Step-by-step explanation:

The original equation of inequality is 10 ≤ x + 4 ....... (1)

It gives 6 ≤ x or 0 ≤ x - 6

Therefore, 0 ≤ x + 14 does not mach with the inequality (1).

And the same solution will not be there for them.

Again, 14 ≤ x also does not match with inequality (1).

And the same solution will not be there for them.

Therefore, 6 ≤ x and 0 ≤ x - 6 gives the same solution as (1).

(Answer)

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3 years ago
Derrick's Dog Sitting and Darlene's Dog Sitting are competing for new business. Derrick's Dog Sitting charges $12 plus $7 per ho
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Answer:

16+9x=20+7x Derrick's dog service is more economical

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3 years ago
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Solve:<br> 5x-3(10-x)&gt;it equal to 4-2x(3-x)
alexira [117]
<em><u>There is no solution!</u></em>
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3 years ago
You start driving north for 16 miles, turn right, and drive east for another 30 miles. At the end of driving, what is your strai
Maru [420]

The distance between starting and ending point is 34 miles.

Step-by-step explanation:

Given,

Car moves 16 miles to north then 30 mile to east.

It forms a right angle triangle.

The straight line distance from starting to ending point represents hypotenuse.

To find the distance between starting and ending point.

Formula

By <em>Pythagoras theorem,</em>

h² = b²+l² where h is the hypotenuse, b is base and l is the another side.

Taking, b=16 and l=30 we get,

h² = 16²+30²

or, h = \sqrt{256+900}

or, h = \sqrt{1156} = 34

Hence,

The distance between starting and ending point is 34 miles.

5 0
3 years ago
The value of y varies directly with x. If x = 8, then y = 96. What is the value of x when y = 168?
patriot [66]

Answer:

  • x = 14

Step-by-step explanation:

<u>Direct variation equation:</u>

  • y = kx, where k is constant of variation

<u>Given:</u>

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<u>The equation is:</u>

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<u>Find the value of x when y = 168:</u>

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7 0
2 years ago
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