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Lana71 [14]
3 years ago
11

If a and b are positive integers and 22a(22b)=16, what is the value of a+b?

Mathematics
1 answer:
Kryger [21]3 years ago
8 0
Given that:
<span>22a(22b)=16
484ab=16
thus
ab=16/484
ab=4/121
thus given that 
ab=4/121
then
a=4 and b=1/121
hence
4+1/121
=4 1/121</span>
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another way to do it is by "elimination", depending on the equations, one way may work quicker than the other, in this case, substitution was the simpler one, because the first equation is already solved for "y", so we just grabbed it and plugged it in the 2nd equation.
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