Answer:
n + 5
Step-by-step explanation:
if last year melly was N year old, she is now n+1 years old.
So, in four years, she will be
(n + 1) + 4 years old
meaning that she will be n + 5 years old.
hope this helps!! :)
Remember you can do anything to an equaiton as long as you do it to both sides
7x-4=5x+15
minus 5x both sides
2x-4=15
add 4 both sides
2x=19
divide by 2
x=19/2
Answer:
4hrs to 9hrs
Step-by-step explanation:
The ratio of 20 hours to 45 hours is
4hrs to 9hrs
9t-6-6t=6 -- add 6 to both sides
9t-6t=12 -- combine like terms
3t=12 -- divide by 3
t=4
