Answer:
solution = (1.-2)
Step-by-step explanation:
put x= 1 and y = -2 in this system : y=-4x+2 and y + 2x = 0
you have : - 2 = - 4(1)+2 and -2 +2(1)=0
-2=-2 and 0=0 .....right
Answer:
m>NQR=30°
m<LNS=61°
RQ=7
Step-by-step explanation:
m>NQR=180-89-61=30°
m<LNS=61°
RQ= 8/4=x/3.5 = 7
Since we know that 40% = $20. we can understand that 80% = $40. since books and savings combine to 40%. this means books and savings mean $20. now that we have found how much 80% of money she has. we can find the remaining. 100% - 80% = 20%. we can divide our ratio 40% = $20 by 2 too see how much money is 20%. in which is %10
now we add up and get $50 in total.
hope this helps :D
Answer:
6 ---------> 2x : 48 = 3 : 12
9 ---------> 2 : 3 = 6 : x
16 --------> 12 : 15 = x : 20
24 -------> 4 : 7 = x : 42
Step-by-step explanation:
The mean absolute deviation is: 2 (option B) since the '7'(option D) is the mean of this problem.