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FLORI591
a fost răspuns

Ex 9 .Va rog.!Va rog.

Ex 9 Va RogVa Rog class=

Răspuns :

Renatemambouko
1⁰=60 min
1⁰=3600 sec
a) 3⁰=3×60'=180'
b) 540'=540:60=9⁰
c)144000"=144000:3600=40⁰
d) 4⁰ 10'=4×3600"+10×60"=14400"+600"=15000"
e)7⁰11'120"=7×60'+11'+120:60'=420'+11'+2'=433'
f)1⁰7'44"=1×3600+7×60'+44"=3600"+420"+44"=4064"