Answer:
1 : 12 : 4
Step-by-step explanation:
Let A, G, C represent the ages of Alex, George, and Carl, respectively. We are told that ...
A = G +12
C = 3A . . . . . . . we read this as "3 times as old"; not "3 times older"
A + G + C = 68
Substituting for G and C, we have ...
A + (A -12) +(3A) = 68
5A = 80 . . . . . add 12
A = 16 . . . . . . . divide by 5
The other ages are then ...
G = A-12 = 16 -12 = 4
C = 3A = 3·16 = 48
The ratios are ...
G : C : A = 4 : 48 : 16
G : C : A = 1 : 12 : 4
Since a straight line is 180 degrees, if you subtract 180-48 you get 132. Divide this by 2 and get X= 66. Because all angle of a triangle add up to 180, subtract the 90 from the right angle and 66 from x from 180. 180-66-90= 24. This means z=24
Answer:
there is only 3 left
Step-by-step explanation:
18 divided by 1/2 is 9 then 2/3 is 6 so you would subtract 6 from 9 and get 3
Answer:
5 months
Step-by-step explanation:
Value m= months
Gym A Money needed to pay= 30m+ 39
Gym B Money needed to pay= 20m+ 89
30m+ 39= 20m+ 89
Now isolate m
(30m-20m) + (39-39)= (20m-20m) + (89-39)
10m = 50
10m/10= 50/10
m=5; You can plug this number in to check my answer.
