Answer:
   140
Step-by-step explanation:
When working HCF and LCM problems, I like to think in terms of this little diagram:
   (a [ b ) c]
It shows me one of the numbers is ab, the other is bc, the HCF is b and the LCM is abc. "a" and "c" must be relatively prime for "b" to be the HCF.
__
Here, we're given ...
   b = 20
   ab = 320
   abc = 2240
Then ...
   c = abc/(ab) = 2240/320 = 7
   x = bc = 20(7) . . . . . . equivalently, x = (abc·b)/(ab) = (2240·20)/320
   x = 140
 
        
             
        
        
        
Answer:
v > -25/p
r = -5 +7/3 w
Step-by-step explanation:
- pv + 40 < 65
Subtract 40 from each side
- pv + 40-40 < 65-40
-pv < 25
Divide each side by -p  (remember to flip the inequality since we are dividing by a negative)
-pv/-p > 25/-p
v > -25/p
7w - 3r = 15
Subtract 7w from each side
7w-7w - 3r = 15-7w
-3r = 15-7w
Divide by -3 
-3r/-3 = (15-7w)/-3
r = -5 +7/3 w
 
        
             
        
        
        
Answer:
Option 1
Step-by-step explanation:
option 1=243
option 2=125
 
        
             
        
        
        
Answer: d)
Step-by-step explanation:
7 is the opposite
25 is the hypotenuse 
24 is the adjacent 
if u refer back to SOH CAH TOA 
cos = adj divided by the hyp 
cos K = 24/25 
*please make sure to double check for yourself or get another person to look it over just incase*
 
        
             
        
        
        
Answer:
hmm
Step-by-step explanation:
lettt meee thinkkkkkk