Answer:
Answer is 12.
Step-by-step explanation:
A+b=15----(1)
a*b=54----(2)
(1) a=15-b ----(3)
put(3) in(2)
(15-b)*b=54
15b-b^2=54
b^2-15b+54=0
(b-9)(b-6)=0
so b=9 or b=6
if b=9 then a=15-9=6
if b=6 then a=15-6=9
answer two numbers are 6 and 9
Answer:
Mary's investment after 2 years would be: 12000 x (1 + 1.5/100)^2 = 12362.7£
Answer:
18
Step-by-step explanation:
Y varies x
Y=kx
45 = -15k
K= -3
Y=kx
Y= -6 * -3
Y = 18