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dimaraw [331]
3 years ago
15

An item on sale costs 25% of the original price. If the original price was $20 , what is the sale price?

Mathematics
2 answers:
nikklg [1K]3 years ago
4 0
20x25%=5

the sale price is $5
Lorico [155]3 years ago
3 0
So an additional discount of 50% off the sale price would bringthe price to 35% (that is, 50% • 70%) of the original price. Thus, a $100item would cost $35 after both discounts. An 80% off sale means thatyou pay 100% – 80%, or 20% of the original cost of the item.
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I need a little extra help with number three
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Answer:

The answer to your question is:

Step-by-step explanation:

Data

f(x) = -2x² + 8x - 2

Process

                -2x² + 8x = y + 2

                -2(x² - 4x + 4) = y + 2 - 8

                -2(x - 2)² = y - 6

                    (x - 2)² = 1/2 (y - 6)

Vertex = (2, 6)

Axis of symmetry =   x = 2

y-intercept

                 f(0) = -2(0)² + 8(0) - 2

                 f(0) = 0 + 0 - 2

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Domain    (-∞, ∞)

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See the graph below

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3 years ago
Juliana wants to find the mass of a watermelon which unit should she use
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A shopkeeper buys two types of tea one at $20 for 10 kg and the other at $23 for 10 kg. He mixes the two types and the mixture i
lorasvet [3.4K]
Let us take the case of first type of tea
Cost of 10 kg of tea one = $20
Then
Cost of 1 kg of tea one = (20/10) dollars
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Now let us take the case of the second kind of tea
Cost of 10 kg of tea = $23
Then
Cost of 1 kg of tea = (23/10) dollars
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So
The mixture of 1 kg of tea one
and 1 kg of second type of tea will cost = (2.0 + 2.3) dollars
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Then the cost of 2kg mixture of tea costs = 4.3 dollars
So
The cost of 10 kg mixture will cost = (4.3/2) * 10 dollars
                                                         = 4.3 * 5 dollars
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Then
The amount of profit made by selling 10 kg tea at $38 = (38 - 21.5) dollars
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Percentage of profit made = (16.5/21.5) * 100
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So the percentage of profit made is 76.74%.
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