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sveticcg [70]
3 years ago
13

When a number is decreased by 47%, the result is 20. What is the original number to the nearest tenth?

Mathematics
2 answers:
zhenek [66]3 years ago
6 0

The answer to this is 37.7  

Lesechka [4]3 years ago
4 0
I’m 90% sure the answer is 37.7
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2 x - 5 + 7 y - 3 = 9 x - 1 - y -8 Solve For X AND Y (SHOW WORK PLEASE)
Maru [420]

Answer:

\large\boxed{\sf x = \frac{8y+1}{7} }

\large\boxed{\sf x = \frac{7x-1}{8} }

<u>Group the Variable's</u>:

2 x - 5 + 7 y - 3 = 9 x - 1 - y -8

2x -9x + 7y +y = -1 -8 +5 + 3

-7x + 8y = -1

<u><em>From this find x and y</em></u>

<u>For X</u>

-7x + 8y = -1

-7x = -1 -8y

7x = 8y + 1

x = (8y +1)/7

<u>For Y</u>

-7x + 8y = -1

8y = -1 +7x

y = (7x -1)/8

3 0
2 years ago
Read 2 more answers
Uma loja de equipamentos eletrônicos anunciou um celular com duas opções de venda. Na primeira opção, o pagamento pode ser feito
Lena [83]

Responda:

Preço = $ 400

Explicação passo a passo:

Dado que:

Primeira opção :

Pagamento em 5 investimento igual

Segunda opçao :

Pagamento feito em 8 iguais. Investimento

O preço por parcela do primeiro investimento é 30 a mais do que cada um do segundo

Deixe o preço do telefone = p

Valor por prestação = x

Segunda parcela:

Preço = 8x

Primeiro :

Valor por parcela = x + 30

P = 5 (x + 30)

Preço = 5x + 150

Portanto, igualando as duas equações:

8x = 5x + 150

8x - 3x = 150

5x = 150

x = $ 50

Usando qualquer das equações de preço:

Preço = 8x

Preço = 8 * 50

Preço do telefone = $ 400

3 0
3 years ago
SOMEONE PLEASE HELP
otez555 [7]

Answer: c and e

Step-by-step explanation:

8 0
3 years ago
There are 230 calories in 4 ounces. How many calories are in 6 ounces
Rufina [12.5K]

Answer:

345 calories

Step-by-step explanation:

Divide 230 by 4

57.5

Multiply 57.5 by 6 ounces

The answer is 345 calories

Hope this helped :)

8 0
3 years ago
Read 2 more answers
Find the percent decrease.Round to the nearest percent. From 97 to 75
damaskus [11]

Answer:

Step-by-step explanation:

Decrease = 97 - 75 = 22

Percentage of decrease=

=\frac{22}{97}*100

= 22.68

= 23%

4 0
3 years ago
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