Question

Exx 8 si 9!!!! Imi trebuie!!!!

Answer 1

8.) (4+2+3)×a≤ 63
9 ×a≤63
9×0= 0
9×7= 63
a= {0,1,2,3,4,5,6,7}

30<(5+2)×a≤49
30<(7×a)≤49
7×5= 35
7×7= 49
a={5,6,7}


9.) (7×8)+(7×9)= 56+63= 119 pomi are bunicul in total

Answer 2

9.) 7×8=56( meri)
7×9=63( pruni )
56+63=119 pomi ( in total )


10.) 5×8=40 carti ( povesti )
3×8=24 carti ( poezie )
40+24=64 carti ( are Ambra in total )