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Lana71 [14]
4 years ago
10

The length of a dance floor to be replaced is 1 foot shorter than twice than width. You measured the width to be 12.25 feet. Wha

t is the area and what is the most accurate area you can report?
Mathematics
2 answers:
telo118 [61]4 years ago
7 0
12.25x2=24.50 (width x2)
24.50-1=23.50 (length)


Area= LxW
        =23.50x12.25
        =287.88 feet

Illusion [34]4 years ago
5 0

Answer:

287.875 square feet.

Step-by-step explanation:

Let x be the width ( in feet ) of the dance floor,

∵ the length of a dance floor to be replaced is 1 foot shorter than twice than width.

So, the length of the dance floor = 2x - 1

According to the question,

x = 12.25 ft,

⇒ 2x - 1 = 2(12.25) -1 = 23.5 ft,

Thus, the area of the floor = length × width

= 23.5 × 12.25

= 287.875 square feet.

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Ashley had a summer lemonade stand where she sold small cups of lemonade for 41.25 AND LARGE CUPS FOR $2.50. If Ashley solf a to
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Question:

Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and large cups for $2.50. If Ashley sold a total of 155 cups of lemonade for $265, how many cups of each did she sell

Answer:

The number of small cups of lemonades  is 98

The number of Large cups of lemonades is 57

Step-by-step explanation:

Given:

Cost of small lemonade  cups = $1.25

Cost of large Lemonade cups =  $2.50

Total number of lemonade cups  = 155 cups

The total cost for which the lemonade is sold =  $265

To Find:

Number of each types of lemonade sold = ?

Solution:

Let the number of small cups of lemonade sold be x

the number of large cups of lemonade sold be y

Then according to the question,

x+y = 155-----------------------------(1)

Then the amount earned by  selling small and large lemonade cups is $265

Then

1.25x+2.50y = 265------------------(2)

From (1)

y = 155-x----------------------------------(3)

Substituting (3) in (2), we get

1.25x+ (155-x)2.50 = 265

1.25 + (387.5 -2.50x) =265

-1.25x + 387.5 = 265

-1.25x= 265 -387.5

-1.25x =  -122.5

x = \frac{-122.5}{-1.25}

x= 98--------------------------------(4)

Substituting (4) in (3)

y = 155-98

y =57

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