Question

0.4a+b=1.25b solve the eqaution
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Answer 1

Answer:

0.4a+b=1.25

now,by subtracting B on both sides,

0.4a+b=0.25b

Now as B=1.6a, it must be clear what the answer should be.

Step-by-step explanation:

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Answer 2

Answer:

$a=\frac{5}{8} b ; a=0.625b$

$And, b=1.6a$

Step-by-step explanation:

0.4a + b = 1.25b

or, 0.4a = 1.25b - b

or, 0.4a = 0.25b

$or, \frac{4}{10}a = \frac{25}{100} b$

$or, \frac{4}{10}a= \frac{1}{4} b$

$or, a=\frac{10}{4 } * \frac{1}{4}b$

$or, a=\frac{5}{8}b$

$or, a=0.625b$

$And, b=\frac{a}{0.625} =\frac{1000a}{625}=\frac{8}{5} a=1.6a$