Question

aflati suma, diferenta si produsul nr x si y , stiind ca raportul lor este 0,75 , iar x este cu 1,5 mai mic decat y

Answer 1

x×y=?
x+y=?
x-y=?

x/y=0,75. x/y=75/100
x/y=3/4. x=3y/4

y=1,5+x
y=1,5+3y/4
4y=1,5×4+3y
4y-3y=6
y=6

x=3y/4. x=3×6/4=18/4=4,5
x=4;5

x+y=4;5+6=10,5
x-y=4,5-6=-1;5
x×y=4,5×6=27