Add 2x and subtract 7
5 -2x +2x < 7 +2x . . . . . . showing 2x added
5 < 7 +2x . . . . . . . . . . . .. simplified
5 -7 < 7 -7 +2x . . . . . . . . showing 7 subtracted
-2 < 2x . . . . . . . . . . . . . . . simplified
Now, divide by 2
-1 < x
The solution is -1 < x.
Answer:
The value of rate of decrease of volume = - 3600 
Step-by-step explanation:
According to Boyle's law P V = C ------- (1)
Pressure ( P ) = 100 k pa = 10 
Volume ( V ) = 900 
Put these values in equation ( 1 ) we get,
⇒ C = 10 × 900 = 9000 N-cm = 90 N-m
Differentiate Equation ( 1 ) with respect to time we get,
⇒ V
+ P
= 0
⇒ V
= - P 
⇒
= -
---------- (2)
This equation gives the rate of decrease of volume.
Given that Rate of increase of pressure =
= 40 
C = 90 N-m
P =
pa = 10 
V = 900
Put all the above values in equation 2 we get,
⇒
= -
× 40
⇒
= - 3600 
This is the value of rate of decrease of volume.
Answer:You'll find that x = 671 miles
Step-by-step explanation:
Setting up and solving an equation of ratios is one of the fastest ways in which to solve this kind of probelm.
183 miles 3 hrs
-------------- = ------------
x 11 hrs
Sorry man I’m not good at math or school in general