well you have to see how far they have gotten after 4 hours. so 4*40=160 50*4=200. since it was opposite directions you add. so 160+200=360.
Answer:
D:y+9=-4(x-4)
Step-by-step explanation:
The positive 9 comes from the top of the graph and its -4 because its on the lower half of the graph.
Amount = P

P is the amount you invested.
r is the interest rate in decimal form (so 6% = 0.06)
n is the number of times a year you are paid interest (semiannually = 2)
nt is the number of payment times you expected (4 years, twice a year = 8 times)
My answer is: P/2a = 2b
if that's wrong then im sorry I got it by dividing 2a on each side so 2b would be alone
Answer:
6
Step-by-step explanation:
To solve for e, it must be <em>alone</em> on one side of the equation
Your equation is:
e/2 = 3
To get rid of the divided by 2, you multiply both sides by 2 since multiplication is the opposite of divison.
So:
e/2 = 3
[Multiply both sides by 2]
e = 6
So, e = 6
I hope this helps! :)