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eimsori [14]
3 years ago
15

Nate is selling a DVD of one performance for $19.99. This is the price after a discount of 25%. What was the original price of t

he DVD?
Mathematics
2 answers:
IrinaVladis [17]3 years ago
5 0

Answer:

Exact: $79.96 Rounded: $80.00

Step-by-step explanation:

25% x 4 = 100%

thus $19.99 x 4 = $79.96. Rounded up to $80.00

Pavlova-9 [17]3 years ago
3 0

Answer:

$26.65

Step-by-step explanation:

Given

Sale Price = $19.99 is the price after a 25% discount.

This means that $19.99 represents 100% - 25% = 75% of the total original price.

75% of original price ---> $19.99

1% of original price ----> $(19.99 ÷ 75)

100% of original price -----> $(19.99 ÷ 75) x 100 = $26.65

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Consider the following random experiment. First, roll a die and observe the number of dots facing up; then, toss a coin the numb
kipiarov [429]

Answer:

{(1, 0), (1, 1), (2,0), (2,1), (2, 2), (3,0), (3,1), (3,2), (3,3), (4, 0), (4,1), (4,2), (4,3), (4,4), (5,0), (5,1),(5,2), (5,3), (5,4), (5,5), (6,0), (6,1),(6,2), (6,3), (6,4), (6,5), (6,6)}

B.)

{(2,2), (3,2), (4,2), (4,4), (5,2), (5,4), (6,2), (6,4), (6,6)}

Step-by-step explanation:

Sample space :

Die roll, then number of coin tosses based on the outcome of the die roll, then number of heada from the toss(es) is recorded along with the outcome of the die roll.

{(1, 0), (1, 1), (2,0), (2,1), (2, 2), (3,0), (3,1), (3,2), (3,3), (4, 0), (4,1), (4,2), (4,3), (4,4), (5,0), (5,1),(5,2), (5,3), (5,4), (5,5), (6,0), (6,1),(6,2), (6,3), (6,4), (6,5), (6,6)}

Event that the total number of head is even:

{(2,2), (3,2), (4,2), (4,4), (5,2), (5,4), (6,2), (6,4), (6,6)}

3 0
2 years ago
28 in 21 in., 20 in.<br> Is this a right triangle?
ankoles [38]

Answer:

No, it is not a right triangle.

Step-by-step explanation:

The simplest way to determine is testing out the numbers with Pythagorian theorem.

If it complies with the theorem, it is a right triangle.

let's assume c = 28, b = 21, and a = 20

the longest side is the hypotenuse so side c (28 in) will be the hypotenuse.

According to the Pythagorian theorem, the square of the length of hypotenuse must equal to the sum of squares of other two sides.

check:

c^2 = 28^2 = 784

a^2 + b^2 = 21^2 + 20^2 = 841

because c^2 is not equal to a^2 + b^2, the triangle is not a right triangle.

7 0
3 years ago
Pls help me geometry is so confusing
Zolol [24]
Dab on them haters brobro
6 0
3 years ago
Evaluate each expression.<br> 3√9 ∙ 3√3
statuscvo [17]

Answer:

27

Step-by-step explanation:

6 0
3 years ago
Find the area of a square<br> with side length 12 inch.
dem82 [27]
A square has all of the same sides, so just do 12x12 which is 144
3 0
3 years ago
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