Answer:
14ab
Step-by-step explanation:
p = 2l + 2w
p = 2(4ab) + 2(3ab)
p = 8ab + 6ab
p = 14ab
Answer:
david is 18 and sally is 24
Step-by-step explanation:
david 6 times 3 = 18
sally 6 times 4 = 24
No, the sequence is algebraic.
9514 1404 393
Answer:
(x, y) = (80, -68)
Step-by-step explanation:
Subtract the second equation from the first.
(3x +y) -(x +y) = (172) -(12)
2x = 160 . . . . . . . . . simplify
x = 80 . . . . . . . . . divide by 2
y = 12 -x = 12 -80 = -68 . . . . . find y from the second equation
The solution is (x, y) = (80, -68).