In order to combine like terms, they have to first be organized. First combine the terms with the variable x, then the terms with no variables.
3x+13.5+5.2x-6
3x+5.2x=8.2x
13.5-6=7.5
The final simplified expression is 8.2x+7.5.
Answer:
B)
Step-by-step explanation:
The contraction rate increases as the osmolarity decreases because of the reduced amount of ATP produced by cellular respiration
First part of the race
speed1, s1 = 8.75 km/h
distance1 = 5 km - x
time 1 = 0.65 h - t
Second part of the race
speed2, s2 = 6 km/h
distance2 = x
time2 = t
s2 = x/t = 6 ⇒ t = x / 6
s1 = [5 - x] / [0.65 - t] = 8.75
5 - x = 8.75 [0.65 - t]
5 -x = 8.75(0.65) - 8.75t
5 - x = 5.6875 - 8.75 (x/6)
5 - x = 5.6875 - 1.4583x
1.4583 x - x = 5.6875 - 5
0.4583 x = 0.6875
x = 0.6875 / 0.4583 = 1.5
Answer:

Step-by-step explanation:
To find: inequality that describes the numbers x less-than 7
Solution:
An inequality compares two values a and b such that either one is less than i.e., a < b, greater than i.e., a > b, or simply not equal to another value i.e., a ≠ b. It describes a non-equal comparison two mathematical expressions.
Inequality that describes the numbers x less-than 7 is 