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Talja [164]
2 years ago
14

A trampoline has a jumping surface that is 15.7 ft. long and 12 ft. wide. What is the area of the jumping surface?

Mathematics
2 answers:
Arisa [49]2 years ago
5 0

Answer:

188.4

Step-by-step explanation:

because if you multiply 15.7 and 12 you get 188.4 and that is the area of the jumping space.

allochka39001 [22]2 years ago
4 0

Answer:

area = length×wide=15.7×12=188.4ft²

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Mancuso wants to draw a sector whose area is 2 times the area of the sector shown
Alecsey [184]

Answer:

Multiply the radius (r), by 2 then divide the angle measure, x, by 4.

Step-by-step explanation:

7 0
3 years ago
Tristan is 22 years younger than Sydney. 8 years ago, Sydney's age was 2 times Tristan's age. How old is Tristan now?
Serjik [45]

Answer:

Sydney is 52 years old, and Tristan is 30.

Step-by-step explanation:

Represent Tristan's age by t and Sydney's by s.

Then s - 8 = 2(t - 8), and t = s - 22

Substituting s - 22 in the first equation, we get:

s - 8 = 2(s - 22 - 8), or

s - 8 = 2s - 60

Solving for s:  -2s + s = -60 + 8, or -s = -52.

Sydney is 52 years old, and Tristan is 30.

4 0
2 years ago
Allison earned $200 the first month she worked and $250 the second month she worked. By what percent did her salary increase?
Afina-wow [57]

Answer: 25%

Step-by-step explanation:

From the question, we are informed that Allison earned $200 the first month she worked and $250 the second month she worked.

The percentage increase in her salary will be calculated as:

= Salary Increase / Old salary × 100

= (250 - 200) / 200 × 100

= 50/200 × 100

= 1/4 × 100

= 25%

The percentage increase is 25%

3 0
2 years ago
A furniture store has a sale during which the sale price of the sofa is 1/3 off its original price the original price of the sof
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

Since the original price of the sofa is 1,029.00 and the sale price of the sofa is 1/3 the original price, it means that the sale price is

1/3 × 1029 = 343

A customer can get an additional 5%off discount off the sale price for paying with cash. This means that the amount that this customer would pay since he is paying cash is

343 - (5/100 × 343) = 325.85

Since at checkout, a 6.5% sales tax on the final price is added to the cost of the sofa, then the total cost of the sofa for this customer is

325.85 + (6.5/100 × 325.85) = 347.03025

5 0
3 years ago
A dormitory has 40 students---12 sophomores, 8 juniors, and 20 seniors. Which of the following is equal to the number of ways to
Maurinko [17]

Answer:

The number of ways is equal to 12!8!20!

Step-by-step explanation:

The multiplication principle states that If a first experiment can happen in n1 ways, then a second experiment can happen in n2 ways ... and finally a i-experiment can happen in ni ways therefore the total ways in which the whole experiment can occur are

n1 x n2 x ... x ni

Also, given n-elements in which we want to put them in a row, the total ways to do this are n! that is n-factorial.

For example : We want to put 4 different objects in a row.

The total ways to do this are 4!=4.3.2.1=24 ways.

Using the multiplication principle and the n-factorial number :

The number of ways to put all 40 in a row for a picture, with all 12 sophomores on the left,all 8 juniors in the middle, and all 20 seniors on the right are : The total ways to put all 12 sophomores in a row multiply by the ways to put the 8 juniors in a row and finally multiply by the total ways to put all 20 senior in a row ⇒ 12!8!20!

4 0
3 years ago
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