You have that situation with ANY base that's less than ' 1 '.
Examples:
(0.9)² = 0.81 (90% of the base)
(7/8)² = 0.765625 (87.5% of the base)
(1/2)² = 1/4 (50% of the base)
(0.1)² = 0.01 (10% of the base)
Each of these results is less than the base, and with
higher positive powers, they keep getting smaller.
Answer:
x = 12
Step-by-step explanation:
Equation: 0.52(x) + 0.72(4) = 0.57(x + 4)
0.52(x) + 0.72(4) = 0.57(x + 4)
Multiply
0.52x + 2.88 = 0.57x + 2.28
Subtract 0.52x from both sides
2.88 = 0.05x + 2.28
Subtract 2.28 from both sides
0.6 = 0.05x
Divide all sides by 0.05
x = 12
-Chetan K