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Georgia [21]
2 years ago
12

Claude spends $315 to rent a car. The car he rents costs $45 per day. He has a coupon for 2 free days. Complete the equation bel

ow to find the number of days Claude rents the car. Use d to represent the number of days
____(_____-____)=_______
2 2 2 2
9 9 9 9
45 45 45 45
90 90 90 90
350 350 350 350
d d d d
Mathematics
1 answer:
kozerog [31]2 years ago
6 0

He rents for d days, but two days are free, so he pays for only d - 2 days.

The rental fee is $45 per day, so for d - 2 days, he pays 45(d - 2). The total he pays is $315, so the equation is

<u>45</u>(<u>d</u> - <u>2</u>) = <u>315</u>

Now we solve the equation to find d, the number of days.

45(d - 2) = 315

45d - 90 = 315

45d = 405

d = 9

The number of days is 9.

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Answer:

Step-by-step explanation:

Sample size = 95

X=cash carried by the persons

x bar = 8.00

s = sample std dev = 2.50

Std error = \frac{s}{\sqrt{n} } =\frac{2.5}{\sqrt{95} } \\=0.2565

Hence Z score would be

\frac{x-8}{0.2565}

a) P(X

-0.00

b) P(9

c) 95% conf interval margin of error = ±1.96*0.2565

=±0.54782

Confi interval = (8-0.5027, 8+0.5027)

= (7.4923, 8.5027)

C)If conf level increases, then width of interval would increase since critical value would increase.

If sample size increases std error would decrease and hence margin of error.

So interval would decrease.

3 0
2 years ago
20% of the tickets sold at a water park were adult tickets. If the park sold 55 tickets in all,how many did it sell?
djyliett [7]

Answer:

11 adult tickets

Step-by-step explanation:

I guess you want the number of adult tickets sold.

That is 20% of 55

= 0.20*55

= 11 (answer)

8 0
2 years ago
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I would like to create a rectangular vegetable patch. The fencing for the east and west sides costs $4 per foot, and the fencing
ss7ja [257]
X = E/W dimension 
<span>y = N/S dimension </span>

<span>4x + 4x + 2y + 2y = 64 </span>
<span>8x + 4y = 64 </span>
<span>4y = 64 - 8x </span>
<span>y = 16 - 2x </span>

<span>Area = xy = x(16 - 2x) = 16x - 2x^2 </span>

<span>Maximum of y = ax^2 + bx + c is when x = -b / 2a </span>

<span>so x = -16 / -4 = 4 </span>
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2 years ago
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Virty [35]
(-5+25k-8k-20)-5+25k-8k-20

(17k-25)-17k-25
8 0
2 years ago
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What are three collinear points on line l?
Jet001 [13]

Points A, F, and G are three collinear points on line l.

\boxed{ \ The \ Answer \ is \ B \ }

<h3>Further explanation  </h3>

Let us consider the definition of collinear.  

Collinear  

Collinear points represent points that lie on a straight line. Any two points are always collinear because we can constantly connect them with a straight line. A collinear relationship can occur from three points or more, but they don’t have to be.  

Noncollinear  

Noncollinear points represent the points that do not lie in a similar straight line.  

Given that lines k, l, and m with points A, B, C, D, F, and G. The logical conclusions that can be taken correctly based on the attached picture are as follows:  

  • At line k, points A and B are collinear.  
  • At line l, points A, F, and G are collinear.  
  • At line m, points B and F are collinear.  
  • Point A is placed at line k and line l.
  • Point B is placed at line k and line m.
  • Point F is located at line l and line m.
  • Points C and D are not located on any line.

Hence, the specific answer to this key question is undoubted, i.e., points A, F, and G.  

<u>Note:</u>

All points can, also, be said to be coplanar. This is because the three lines intersect with each other and lie on a planar surface.

Coplanar  

Coplanar points represent a group of points that lie on the same plane, i.e. a planar surface that extends without end in all directions. Any two or three points are always coplanar, but four or more points might or might not be coplanar.  

<h3>Learn more  </h3>
  1. Determine which points are coplanar and noncollinear brainly.com/question/4165000
  2. Finding a set of points is not coplanar in a pyramid brainly.com/question/2269323  
  3. Determining the best description of connection lines AB and CD on given rectangular prism ABCD brainly.com/question/4910705  

Keywords: what are, three collinear points A, F, and G, noncollinear, located, similar straight line, definition, represents, relationship, coplanar

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