Ghi=j
h/gi=j/gi
h=j/gi
the sign "/" means divide by
So
Jon's age=j
mary age=m
m+j=27
m+2 times j=40
m+2j=40
M+j=27
ssubtract j from both sides
m=27-j
subsitute 27-j for m
27-j+2j=40
27+j=40
subtract 27 fromboth sdies
j=13
subsitue
13+m=27
subtract 13
m=14
mary=14
john=13
Answer:
The third one (y=x^3) is a function because it passes the vertical line test.
Step-by-step explanation:
first you put 18/y=2
you multiply by 18 to get y=36
your answer is 36, y=36
4i/(1+i) + (6+3i)
multiply the first fraction by the conjugate
2i + 6+3i = 6+5i
6+5i
