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4 years ago

How many solutions exist for the given equation? 0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)

Mathematics

2 answers:

sergeinik [125]4 years ago

7 0

Answer:

One solution

Step-by-step explanation:

The given equation is;

0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)

Multiply through by 100

75(x + 40) = 35(x + 20) + 35(x + 20)

Combine the right hand side

75(x + 40) = 70(x + 20)

Expand the parenthesis

75x +3000 = 70x + 1400

Group similar terms;

75x -70x =1400-3000

5x=-1600

Divide both sides by 5

x=-320

There exist only one solution

Marysya12 [62]4 years ago

6 0

Answer:

thair is only one salution

Step-by-step explanation:

got 100%

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

hello,

from this question, it has been stated that the lucky number is 1

from all of these values below we are to account how many times 1 appeared in these numbers have

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