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Alina [70]
3 years ago
8

You have a pool that measures 8 yards by 10 yards. You want to build a deck around all four sides of the pool and you want to in

crease the total area to 120 square yards. The deck is the same width on both sides forming a perfect rectangle. What is the width of the deck?
Mathematics
1 answer:
gladu [14]3 years ago
7 0
Given:
pool length : 10 yards
pool width : 8 yards

Area = 10 yds * 8 yds = 80 yd²

(10 + 2x)(8 + 2x) = 120 
10(8 + 2x) + 2x(8+2x) = 120
80 + 20x + 16x + 4x² = 120
4x² + 36x + 80 - 120 = 0
4x² + 36x - 40 = 0
4(x² + 9x - 10) = 0
4(x + 10)(x - 1) = 0

x + 10 = 0
x = -10
x - 1 = 0 
x = 1

the width of the deck is 1 yard


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Answer:

No positive value of n

Step-by-step explanation:

we have to find out for how many positive values of n are both

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Let us consider first cube

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Thus 10 is the least integer which satisfies four digits for cube.

The highest integer is 9999 and it has cube root as 21.54

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Considering 3^n we get,

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5 0
3 years ago
What is the tenth term in the sequence 9, 13, 17, 21, 25…?
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6 0
2 years ago
-28-(-16)= What is the answer
Finger [1]

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-12

Step-by-step explanation:

<u>Step 1:  Find the answer </u>

Subtracting a negative number is same as adding a positive number

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2 years ago
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Adult tickets to the fall play cost $6 and student tickets cost $3. The drama class sold 25 more student tickets than adult tick
svlad2 [7]

9514 1404 393

Answer:

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Step-by-step explanation:

For many "mixture" problems, it is convenient to use a variable for the quantity of the highest contributor. Here, we can use 'a' to represent the number of adult tickets, because adult tickets cost the most. Then the number of student tickets is (a+25), and the total revenue is ...

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The drama class sold 90 student tickets and 65 adult tickets.

6 0
3 years ago
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