<span>From the problem, you can get this equation:
Jane is 2 years older than Sally
J=z+2
David is 4 times older than Jane.
D=4J
</span>Write two equivalent expressions that represent David’s age in terms of Sally’s age, z, and explain how the two expressions relate to one another.<span>Sally is z years old.
From the 2 equation above, you can get:
</span>D=4J
D=4(z+2)
D=4z+8
D-8=4z
(D-8)/4=z
The two equivalent expression would be D=4z+8 and (D-8)/4=z
The expression that more usefull would be D=4z+8 if you want to determine David age.
Answer:
life
Step-by-step explanation:
lololollololololololololololololol
Answer:
D
Step-by-step explanation:
f(n)=-13-2(n) if n=-1 then f(n)=-15 if n=-2 then f(n)=-17
Distance between 4:15 and 5:50 is 95 minute
So he practiced for 95 min
7 x 500,000 = 3,500,000cm then 3,500,000 in km is 35km
