Answer:
b
Step-by-step explanation:
b because it say's 1/5 and 7 it do not say negative so yea
Answer:
Missing constant: 100
Step-by-step explanation:
perfect square (a - b)^2 = a^2 - 2ab + b^2
In this case
20x = 2 * x * 10
and
10^2 = 100
so
(x - 10)^2 = x^2 - 20x + 100
Answer:
Step-by-step explanation:
x + y = 7 + 2/8 = 58/8
x - y = 2 + 4/8 = 20/8
Add the equations together
2x = 78/8
x = 39/8
y = x - 20/8 = 19/8
x = 39/8 = 4⅞
y = 19/8 = 2⅜
Answer:
Bianca's speed: 60 mph
Colin's speed: (150)/(2.5) = 60 mph
Dave's speed: (105)/(7/4) = 60 mph
C. Bianca had the fastest average rate of speed
