Question

VA ROG!!!!!!!!!!!
DAU CORONITĂ!!!​

Answer 1

Răspuns:

Ex 35

Avem a=64+(100-9x9-5x2)

=64+(100-81-10)=

=64+(19-10)

=64+9=

=73 deci a=73.

Avem b=37+(45-6x6:6)

=37+(45-36:6)=

=37+(45-6)=

=37+39=76

Avem c=23+(27:9-24:8)

=23+(3-3)=23+0=23

2a+3b-4c=?

a este egal cu 73 deci 2a=2x73= 146

b=76 deci 3b=3x76= 228

c=23 deci 4c=23x4=92

Si calculam 2a+3b-4c=

146+228+92=466.

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