Answer:
3
Step-by-step explanation:
The factors of 12a are ...
2×2×3×a
The factors of 27 are ...
3×3×3
The only common factor is 3.
_____
12a -27 = 3(4a -9)
Answer:69
Step-by-step explanation:
2.5(12.75x + 24.50) = 188.75
31.875x + 61.25 = 188.75
31.875x = 188.75 - 61.25
31.875x = 127.50
x = 127.50 / 31.875
x = 4....they worked 4 hrs
Answer:
25
Step-by-step explanation:
-5^2 expanded is -5 x -5
- two negatives equal a positive
-visual representation of 5 x 5
O O O O O
O O O O O
O O O O O
O O O O O
O O O O O
Answer:
Step-by-step explanation:
1) y = 3x -------------(I)
y = 4x - 5 -------------(II)
Plug in y= 3x in equation (II)
3x = 4x - 5
3x + 5 = 4x
5 = 4x - 3x
5 = x
x= 5
Plug in s = 5 in equation (I)
y = 3*5 = 15
x = 5
y = 15
