Answer:
x = +/-10°
Step-by-step explanation:
[2(x+10)]°=
[2x + 20] =
[2x] = [-20]
2x/2 = -20/2
x = -10
(3x - 30)°
3x/3 = 30/3
x = 10
Answer:
540
Step-by-step explanation:
Silver = 10%
Gold = 90%
Amount of gold to be deducted
90/100 × 18 = 16.2 g
75/100 × 18 = 13.5
16.2 - 13.5 = 2.7
Amount o silver to added.
2.7 × 5 = 13.5
Answer = 13.5 g
Po = 95
r = 15% = 0.15
t = 2023 - 2015 = 8
P = Po * e^(rt)
P = 95*e^(0.15*8)
P = 95*3.32
P = 315.41
