Question

resolvar as expressões abaixo:
a) [72:8+(112.5)+(121:11)]=
b) [33+(28.3)+(54.6)-20]=
me ajudem por favor

Answer 1

a) resolva as operações entre parenteseses, eliminio-os:

a) (112.5)+(122:11)= 560+11

72÷8+560+11=
9+560+11=
580.

b) (28.3)+(54.6)=84+324

33+84+324-20
441-20=
421.

Answer 2

a)

= [72/8 + (112 . 5) + (121/11)]

= [9 + (112 . 5) + 11]

= [9 + 560 + 11]

= [20 + 560]

= 580

b)

= [33 + (28 . 3) + (54 . 6) - 20]

= [33 + 84 + 324 - 20]

= [441 - 20]

= 421

Att. NLE Top Shotta