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Llana [10]
2 years ago
15

I have a math quiz so help before I fail... please help :(

Mathematics
1 answer:
natima [27]2 years ago
8 0
45.50 = .7n
N is this year’s amount
Last year’s amount is equal to .7 N
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In how many ways can you arrange the numbers 1, 3, 5, and 7 to make a four-digit number that uses each number exactly once?
Temka [501]
There are 24 possible arrangements
7 0
3 years ago
the kline family went on vacation last year and paid $199 a night for the hotel room. This year, the price has increased by 5% .
dangina [55]

Answer: $208.95

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3 years ago
Today, there were 2 members absent from the band. The present members folded 25 programs each, for a total of 525 programs. How
Dafna1 [17]

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6 0
3 years ago
The record holder in eating chocolate ate 31.5 ounces of Chicago Chocolate Hearts in 7 minutes. How much chocolate did he eat pe
sasho [114]

Answer:

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Si 15 obreros construyen un muro en 45 minutos, ¿en cuánto tiempo lo construirán 3 obreros con similar habilidad?
Alexxx [7]

Answer:

3 obreros tardaran 225 minutos en completar el trabajo.

Step-by-step explanation:

Sea R la velocidad con la que un obrero puede construir 1 muro.

Sabemos que 15 obreros construyen un muro en 45 minutos, entonces:

(15*R)*45min = 1 muro

Con esta ecuación podemos encontrar el valor R

R = (1 muro)/(15*45min)  

Ahora queremos saber cuando tiempo tardan 3 obreros en construir un muro, entonces tenemos que resolver:

(3*R)*T = 1 muro

Reemplazando el valor de R obtenemos:

(3*(1 muro)/(15*45min))*T = 1 muro

T = (1 muro)*(15*45 min)/(3*1 muro)

T = 5*45min = 225 min

3 obreros tardaran 225 minutos en completar el trabajo.

7 0
3 years ago
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