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almond37 [142]
3 years ago
12

An item went from 40 to 30. what is the percent discount

Mathematics
1 answer:
Sedaia [141]3 years ago
3 0
Old Price = 40
New Price = 30

Discount = old price - new price
Discount = 40 - 30
Discount = 10

Percentage discount = discount/original x 100
Percentage discount = 10/40 x 100 
Percentage discount = 25%

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Answer: 25%
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Who has more 3/8 or 2/3?
aleksley [76]

Answer:


Step-by-step explanation:

Compare, what fraction is larger? 2/3 vs. 3/8. Fractions sorted in ascending order: 3/8 < 2/3. Ordinary math fractions compared, result explained below

 

Comparing fractions operation:  

2/3 vs. 3/8

Reduce (simplify) fractions to their lowest terms equivalents:

2/3 already reduced to lowest terms, numerator and denominator have no common prime factors, their prime factorization:  

2 is a prime number and 3 is a prime number;

3/8 already reduced to lowest terms, numerator and denominator have no common prime factors, their prime factorization:  

3 is a prime number and 8 = 23;

To sort fractions, build up their numerators the same.

Calculate fractions' numerators LCM (lowest common multiple), it will be the common numerator of the compared fractions:

Numerators' prime factorization:

2 is a prime number;

3 is a prime number;

For LCM, take all the unique prime factors, by the largest exponents:  

LCM (2, 3) = 2 * 3 = 6

Calculate each fraction's expanding number (LCM divided by each fraction's numerator):

For fraction: 2/3 is: 6 ÷ 2 = (2 * 3) ÷ 2 = 3;

For fraction: 3/8 is: 6 ÷ 3 = (2 * 3) ÷ 3 = 2;

Expand the fractions, build up each fraction by multiplying its numerator and denominator by its expanding number, so all the numerators are built up to their LCM, the lowest common multiple:

2/3 = (3 * 2)/(3 * 3) = 6/9;

3/8 = (2 * 3)/(2 * 8) = 6/16;

Fractions have equal numerators, simply compare their denominators.

The larger the denominator the smaller the positive fraction.

::: Comparing operation :::  

Final answer:

 

Fractions sorted in ascending order:  

6/16 < 6/9  

Initial fractions in ascending order:  

3/8 < 2/3

8 0
4 years ago
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135,634,554 what is the value of 3
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30 million is the value of the 3
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3 years ago
What is the solution to the inequality -3x + 7 &gt; 1? x
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Answer:

Do you have a picture?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Antonio, Lucas y Darío compraron un refresco de 5/2 (2litros y 1/2) que piensan repartir en partes iguales. a) ¿Qué fracción de
Elanso [62]

Answer:

a) A Antonio, Lucas y Darío le corresponde cada uno \frac{5}{6} litros.

b) Antonio, Lucas y Benjamín deben convidar cada uno \frac{5}{24} litros.

Step-by-step explanation:

a) Antonio, Lucas y Darío compraron un refresco, el cual reparten en tres partes iguales. Por tanto, la fracción de litro para cada persona es la capacidad del refresco dividido por el número de personas. Es decir:

x = \frac{\frac{5}{2}\,L }{3}

x = \frac{5}{6}\,L

A Antonio, Lucas y Darío le corresponde cada uno \frac{5}{6} litros.

b) En primer lugar calculamos la fracción correspondiente a cuatro personas:

x = \frac{\frac{5}{2}\,L }{4}

x = \frac{5}{8}\,L

Ahora, procedemos a calcular la diferencia entre el escenario calculado en a) y el resultado anterior:

\Delta x = \frac{5}{6}\,L-\frac{5}{8}\,L

\Delta x = \frac{40-30}{48} \,L

\Delta x = \frac{10}{48}\,L

\Delta x = \frac{5}{24}\,L

Este resultado corresponde a la fracción que Antonio, Lucas y Darío deben convidar cada uno a Benjamín. Entonces, Antonio, Lucas y Benjamín deben convidar cada uno \frac{5}{24} litros.

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3 years ago
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D seems to have the possibility of having the largest range.
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3 years ago
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