divide total miles by time:
157.5 / 2.5 = 63 miles per hour
Answer:should be 31
Step-by-step explanation:
First problem:
n/4 + 2 = -9
-2 -2
n/4 = -11
x4 x4
n = -44
Check:
-44/4 + 2 = -9
-11 + 2 = -9
-9 = -9
Second problem:
3/4x = -12
0.75x = -12
-------- ----
0.75 0.75
x = -16
3/4 * (-16) = -12 OR 0.75 * (-16) = -12
-12 = -12
Still get the same answer.
The third option can be represented by a linear function, y = -8x + 6.
(a - 2b) • (2a - b) is how you factor this using FOIL