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3 years ago

A pizza dinner for $20 was marked down 20%. What was the new sale cost of the dinner?

Mathematics

2 answers:

inn [45]3 years ago

6 0

Answer:

$16

Step-by-step explanation:

take 20 multiply it by 0.2 and you get 4 multiplied by 4 is 16 so it is 16 dollars

nikdorinn [45]3 years ago

5 0

16 that’s your answer to ur question

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Write the algebraic expression for the difference between the squares of two numbers.

V125BC [204]

The algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is

a² - b² = (a + b)(a - b).

An algebraic expression is a combination of terms, where the terms are separated using mathematical operators like plus (+), minus (-), multiply (*), and divide (/).

The terms are combinations of numerals and variables.

Variables are represented alphanumerically, which can hold any value as per the expression they are used in.

In the question, we are asked to write the algebraic expression for the difference between the squares of two numbers.

We assume the two numbers to be a and b respectively.

Thus, we are asked to write an expression for the difference between the square of a and square of b, that is, we are asked to write an expression for a² - b².

We know that a² - b² is an identity, which can be shown as (a + b)(a - b).

Thus, the algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is a² - b² = (a + b)(a - b).

Learn more about algebraic expressions at

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6 0

2 years ago

Whoever gets it right gets brainlyess answer:)

soldi70 [24.7K]

8 people prefer pepperoni because 50 people times .16 is 8

6 0

3 years ago

Can someone please explain to me how to do this.

JulijaS [17]

Y = x² - 4x + 4
y = 2x - 4

Find intersection of L and C:
x² - 4x + 4 = 2x - 4
x² - 6x + 8 = 0
<span> (x - 2)(x - 4) = 0
x = 2 or x = 4

When x = 2 , y = 2(2) - 4 = 0
When x = 4, y = 2(4) - 4 = 4

Points of intersection = A(2, 0) and B(4, 4)

Find the length of AB:

</span> $
\text {Length of AB}= \sqrt{(4-0)^2 + (4-2)^2} = \sqrt{16 + 4} = \sqrt{20} = 4.47 \text{ units}$
<span>
Answer: 4.47 units

</span>

4 0

4 years ago

What is the area of a trapezoid? 47,45,65

Masteriza [31]

Area = 2,520m^2
(47+65)/2 = 56
56x45 = 2,520

8 0

3 years ago

The price of a plane ticket has increased from $150 to $200. By what percent has the price increased? A) 15% Eliminate B) 25% C)

german

Answer:

Step-by-step explanation:

4 0

4 years ago

A pizza dinner for $20 was marked down 20%. What was the new sale cost of the dinner?​

A pizza dinner for $20 was marked down 20%. What was the new sale cost of the dinner?