Question

Va rog sa ma ajutati ! am nevoie urgent ! :(

Answer 1

a. -6.87
b. -0.273
c. 0.83
d. 1.556

Answer 2

a) -0,8+1,1(3) = -8/10+(113-11)/90=-4/5+102/90=-4/5+17/15=(-12+17)/15=-5/15=1/3
b) -2,4+3,2(3) = -24/10+(323-32)/90=-12/5+291/90=-12/5+97/30=(-72+97)/30=
=25/30=5/6
d) -1,(3)+1,02(7)=-(13-1)/9+(1027-102)/900=-12/9+925/900=
=-4/3+37/36=(-48+37)/36=-11/36
e)2,25-0,69(4)=225/100-(694-69)/900=9/4-625/900=9/4-25/36=(81-25)/36=
=56/36=14/9


a)1 1/4+0.25 = 5/4+1/4=6/4=3/2
b) -3,57+5 1/2 =-357/100+11/2=(-357+550)/100=193/100
c) 4 2/3-0,(3) = 14/3-3/9=14/3-1/3=13/3
d) 2,8(3)-3 5/8=(283-28)/90-29/8=255/90-29/8=17/6-29/8=(68-87)/24=-19/24
f) 1,2(7)- 1 3/4 =(127-12)/90-7/4=115/90-7/4=23/18-7/4=(46-63)/36=-17/36
g) 2,0(5) - 1 8/3=(205-20)/90-11/3=185/90-11/3=37/18-11/3=(37-66)/18=-29/18