Answer:
10
Step-by-step explanation:
51+19=70
70/10=7
Answer:
9 students
Step-by-step explanation:
If 1 student runs a 3rd we need 3 students to run 1 mile.
Since we need 3 times that amount of miles we multiply the amount of students it takes to run 1 mile so that we find out how many we need to run 3 miles.
3 x 3 = 9
They will need 9 students I hope this helps have a great day :)
What do you mean do you not need help with hw??
Answer:

Step-by-step explanation:
You would use the Pythagorean Theorem:
+
= 
The a and b is the legs and the c is the hypotenuse
So when you fill it in you get
+
= 
continue to solve the equation 4+25= 
29 = 
then you would square root it
c = 