3.75 miles per hr........in 2.5 hrs =
3.75 * 2.5 = 9.375 miles
Answer:
first number= 19/5
second number= 2/5
Step-by-step explanation:
first number= a
second number= b
a+3b=5 equation 1
b+2a=8 equation 2
using equation 2 we have
b=8-2a
using equation 1 we have
a+3(8-2a)=5
a+24-6a=5
24-5=6a-a
19=5a
a=19/5 = first number
so using b=8-2a
we have
b=8-2(19/5)
b=8-(38/5)
b=2/5 = second number
The answer is 7x/12 - 1/2. Its the first option in your picture. Hope this helps .
All you have to do is just add up all the sides to find the perimeter
Step-by-step explanation:
9 miles per day
8 days hiking
9m x 8d = 72 miles long
