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3 years ago

How many solutions does 0.75(x+40)=0.35(x+20)+0.35(x+20) have?

Mathematics

2 answers:

aev [14]3 years ago

5 0

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

is the answer d

Neporo4naja [7]3 years ago

4 0

Only one because there is one variable and the combined coefficients of x are non-zero.
(0.75(x+40)=0.70(x+20), 0.05x=14-30=-16, x=-320)

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