Answer:
See the explanation for the answer to this question
Step-by-step explanation:
Let
B ---> the balance of money saved.
M ---> the amount invested in dollars
JoeNah's Equation
M=$100

Dekobian's Equation
M=$100

Evan's Equation
M=$100

Substitute

Dekobian's equation and Evan's equation are correct! :)
JoeNah's equation is wrong. :(
Hope this helps you!
Have a good evening!
Answer: B
Step-by-step explanation:
Ron walks 1/2 mile in 10 minutes. There are six 10 minute intervals in an hour 60 divided by 10 is 6. So, therefore he can walk 1 mile in 20 minutes, 1/3 of an hour and a total of 3 miles per hour.
3 x 20 = 60.
Stevie walks 1/4 of a mile in 6 minutes, so that's 12 minutes to walk 1/2 mile. 60/12=5
Stevie can walk 5 half miles which transfers to 2 1/2 miles per hour.
6/40 is equalvilant because all you have to do is double or simplify it by 2