Question

Ajuda por favor e só até amanhã isso aqui

Answer 1

Resposta: $a) 30h15'6''\\\\b)15h4'30''\\\\c)130h44'32''\\\\d)131h6'7''\\\\e)5h54'50''\\\\f)1h12'10''\\\\g)14h20'44''\\\\h) 9h25'24''\\\\i)36h14'33''\\\\j)8h48'40''$

Explicação passo a passo:

$a) \left \{ {40h28'12''} \atop -{10h13'6''}} \right. \rightarrow 30h15'6''\\\\b) \left \{ {{90h25'00''} \atop -{75h20'30''}} \right. \\\\Observe: 1' = 60''\\\\\left \{ {{90h24'60''} \atop -{75h20'30''}} \right. \rightarrow 15h4'30''$$c)\left \{ {{36h43'52''} \atop +{94h00'40''}} \right. \rightarrow 130h43'92'' \rightarrow 130h44'32''\\\\d)\left \{ {{96h13'27''} \atop +{34h52'40''}} \right. \rightarrow 130h65'67'' \rightarrow 130h66'7'' \rightarrow 131h 6' 7''\\\\e)\left \{ {19h45'70''} \atop -{13h50'80''}} \right. \left \{ {{18h105'70''} \atop -{13h50'80''}}} \right. \left \{ {{18h104'130''} \atop -{13h50'80''}} \right. \rightarrow 5h54'50''\\\\f)\left \{ {{3h15'40''} \atop -{2h3'30''}} \right.\rightarrow 1h12'40''$

$g) \left \{ {{10h5'6''} \atop +{4h15'38''}} \right. \rightarrow 14h20'44''\\ \\h)\left \{ {{19h35'48''} \atop -{10h10'24''}} \right. \rightarrow 9h25'24''\\\\i)\left \{ {{23h48'75''} \atop +{12h25'18''}} \right. \rightarrow 35h73'93'' \rightarrow36h14'33''$

$j)\left \{ {38h78'60''} \atop -{30h30'20''}} \right. \rightarrow 8h48'40''$