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sveticcg [70]
3 years ago
15

A square has an area of 81 inches. If the side lengths of the square are each multiplied by 5, find the area of the new square.

Mathematics
2 answers:
Ahat [919]3 years ago
4 0

Answer:

2025

Step-by-step explanation:

morpeh [17]3 years ago
3 0
2,025 this is because the side lengths are both 9 to begin with since 9x9 is 81. If the side lengths are multiplied by 5 then 9x5 is 45. This changes the problem to 45x45. The product is then 2,025. I hope this helped!
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Answer:

La opción correcta es;

d) R $ 1.200,00

Step-by-step explanation:

El monto que Joao prestó a José = R $ 1.000,00

La duración del préstamo = 6 meses

El plazo de interés del préstamo = interés simple del 10% por trimestre

La cantidad que José tiene que pagarle a Joao después de 6 meses viene dada por la siguiente fórmula de interés simple;

A = P · (1 + r · t)

A = La cantidad que José tiene que pagarle a Joao después de 6 meses

P = La cantidad que Joao prestó a José = R $ 1.000,00

r = La tasa de interés = 10% / trimestre = 10% / (3 meses) = 0.1 / (3 meses)

t = La duración del préstamo = 6 meses

Por lo tanto, al sustituir los valores anteriores en la fórmula de interés simple, tenemos;

A = R $ 1.000,00 × (1 + 0,1 / (3 meses) × 6 meses) = R $ 1.000,00 + R $ 200,00 = $$ 1.200,00

El monto que José debe pagar a Joao después de 6 meses = R $ 1.200,00

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Step-by-step explanation:

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Answer: 96 adult tickets were sold.

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of students tickets that were sold.

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Adult tickets sold for $7, and student tickets sold for $3. If the ticket sales totaled 1,527, it means that

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Substituting x = 381 - y into equation 1, it becomes

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Step-by-step explanation:

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