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charle [14.2K]
3 years ago
10

PLEASE help me at 1 B !!!!

Mathematics
2 answers:
aalyn [17]3 years ago
8 0
it would be 66 cause you know it
steposvetlana [31]3 years ago
6 0

Answer:

a = 1, b = 4

Step-by-step explanation:

You have worked out part (a) correctly, that is

0.7575... = \frac{75}{99} = \frac{25}{33}

(b)

\frac{a}{11} + \frac{b}{6} = \frac{25}{33}

\frac{6a+11b}{66} = \frac{25}{33}  

Multiply numerator/ denominator of \frac{25}{33} by 2, thus

\frac{25(2)}{33(2)} = \frac{50}{66} , then

\frac{6a+11b}{66} = \frac{50}{66} , thus

6a + 11b = 50

Choose a = 1 ( a positive integer ), then

6(1) + 11b = 50

6 + 11b = 50 ( subtract 6 from both sides )

11b = 44 ( divide both sides by 11 )

b = 4

a = 1, b = 4, so

\frac{1}{11} + \frac{4}{6} = \frac{25}{33\\}

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