Answer:
-6 < x < -3
Step-by-step explanation:
21 < -3( x – 4) < 30
Divide all sides by -3, remembering to flip the inequalities
21/-3 > -3/-3( x – 4) > 30/-3
-7 > x-4 > -10
Add 4 to all sides
-7+4 > x-4+4 > -10+4
-3 > x > -6
Rewrite
-6 < x < -3
Answer:
Original value of investment = £500 (Approx.)
Step-by-step explanation:
Given:
Rate per year = 4%
Number of year = 3 years
Value of investment after 3 year = £562.43
Find:
Original value of investment
Computation:
A = P[1+r]ⁿ
562.43 = P[1+4%]³
562.43 = P[1+0.04]³
562.43 = P[1.04]³
562.43 = P[1.1248]
Original value of investment = 562.43 / 1.1248
Original value of investment = 500.026
Original value of investment = £500 (Approx.)
Answer:
27y
Step-by-step explanation:
3×9=27×y = 27y
all is shown
