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makkiz [27]
4 years ago
10

The length of an 8000 square foot rectangular gymnasium is 20 feet greater than its width.

Mathematics
1 answer:
Svetach [21]4 years ago
4 0

Answer: 80 feet.

Step-by-step explanation:

You can calculate the width using two equations and solving for the side lengths.

L * W = 8000

L = 20 + W

You can then substitute the L in the first equation for the L in the second equation:

(20+W)*W = 8000

W^2 + 20W - 8000 = 0

Now, you can factor this equation to solve it:

(W + 100)(W-80) = 0

Your solutions for W are -100 and 80. Considering the width of a rectangle cannot be negative, the only possible solution is 80 feet, which makes your length 100 feet.

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Answer:

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Step-by-step explanation:

4 0
3 years ago
The Art and History Museum offers a family discount card for a donation of $57. I The table shows the price per person with and
Murljashka [212]

Answer:

8 number of visits will be the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

Step-by-step explanation:

                             Price without Discount Card   Price with Discount Card

Ticket (12 & Under)        $10                                             $8

Adult's Ticket                  $15                                           $12

Let x be the number of visits

Price without discount card for 2 adults and 1 child ticket

Price without discount for x visits = x(15 \times 2+ 10)=40x

Price with discount for x visits =57+ x(12 \times 2+ 8)=57+32x

Now to find For what number of visits will the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

57+32x< 40x

57<8x

7.1<x

So, 8 number of visits will be the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

8 0
3 years ago
Polk elementary school has three classes for each grade level kindergarten through fifth grade if there is an average of 27 stud
olga2289 [7]
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4 0
4 years ago
Evaluate rs + 14s when r = 6 and s = 8
Ivahew [28]

Answer:

160

Step-by-step explanation:

Plug in 6 for r, and 8 for s in the expression:

(r)(s) + (14)(s) = (6)(8) + (14)(8)

Remember to follow PEMDAS. First, multiply, then add:

(6 * 8) + (14 * 8)

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112 + 48 = 160

160 is your answer.

~

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3 years ago
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<span>The hypothesis is : If Robbie wants to save money to buy a car. Conclusion : he must get a part-time job. 

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8 0
3 years ago
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