Answer:
Each person runs 3 miles in a relay race.
Step-by-step explanation:
Given:
Distance of Relay race m = 12 miles.
The expression m divided by 4 is the distance each person runs in a relay race that is m miles.
Each person runs in relay race = 
Now given the total distance of the relay race is 12 miles.
i.e. value of m = 12 miles
Now substituting the value of m in above equation we get;
Each person runs in relay race = 
Hence each person runs 3 miles in a relay race.
Answer:
The rank of the matrix is 3.
Step-by-step explanation:
Consider the prided information.

Reduce the matrix in row echelon form as shown:




The rank of a matrix is the number of non zeros rows.
Thus, the rank of the matrix is 3.
Yes, Tyesha has enough wood for her project.
Step-by-step explanation:
7.5 feet (7'6") + 5.25 feet (5'3") + 6.75 (6'9") = 19.5 feet (19 feet, 6 inches)
Answer:
50
Step-by-step explanation:
The ratio of marked fish to caught fish is 4:10, we need to solve for x in 20:x, since 4 * 5 = 20, 10 * 5 = x so x = 50 fish.
Your breaking the problem down.
8 x (40 + 7)
You notice how in the second part of the equation, the (8 x 7) the 40 is not there?
Your answer will be 8 x (40 + 7) = (8 x 40) + (8 x 7)