Answer:
5 seconds
Step-by-step explanation:
All you have to do is make a ratio.
10 yards = 5/3 seconds
10 * 3 = 30 yards
5/3 * 3 = 15/3 = 5 seconds
By factoring, x equals both -5 and 7.
Answer:
71
Step-by-step explanation:
There are 12 inches in a foot:
12 inches x 5 feet = 60
60 + 11 inches = 71 inches total
Answer:
the length of the missing side is 2
Step-by-step explanation:
Use a^2 + b^2 = c^2
a = 4
b = ?
c = 2sqrt5
4^2 + b^2 = (2sqrt5)^2
16 + b^2 = 20
subtract 16 from both sides
b^2 = 4
take the sqrt of both sides
b = 2
