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2 years ago

Find the missing amount)

Mathematics

2 answers:

Deffense [45]2 years ago

5 0

Answer:

Original = $200

Step-by-step explanation:

Original = x

Final = 172

Percent Decrease = 14%

Original = 100%

Final = 100% - 14%

172 = 86%

Solve:

172/86 * 100 = x

2 * 100 = 200

Original = 200

-Chetan K

blsea [12.9K]2 years ago

3 0

$ 200 ( approximately )

Step-by-step explanation:

100% - 14% = 86%

100/86 × 172

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Answer:

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Step-by-step explanation:

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(UFRGS) Se 10x = 20y , atribuindo 0,3 para log2, então o valor de é

sveticcg [70]

Answer:

$\frac{x}{y}=1.3$

Step-by-step explanation:

<u>Informação recuperada:</u>

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log 2 , então o valor de x/y é

1) Primeiro, passando o 10 para o 2º membro como base do logaritmo:

$10x=20y \Rightarrow x=log_{10}20y$

2) Aplicando a propriedade do produto de logaritmo:

$log(AB)= logA+logB$

$x=log_{10}20y \Rightarrow x=log(2+10)y\Rightarrow x=(0.3+1)y \Rightarrow x=1.3y$

3) Como quero o quociente divido ambos os lados por y

$\frac{x}{y}=\frac{1.3y}{y}\Rightarrow \frac{x}{y}=1.3$

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2 years ago

A school assembly had 70 students in attendance, and 90% of them were first-graders. How many first-graders were at the assembly

natulia [17]

Answer:

Step-by-step explanation:

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1 year ago

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Mama L [17]

Answer:

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Hope this helps:)

Step-by-step explanation:

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2 years ago