Answer:
her total was 11.
Step-by-step explanation:
Answer:
Yes that is the correct answer
Step-by-step explanation:
$17.85 is 110% of the original price.
To find 1% divide this by 110:
17.85/110 = 0.16% (rounded).
Original price is 100% so 0.16*100 = $16.23 (rounded).
Check:
$16.23*1.1=$17.85 (1.1 is decimal equivalent of 110%).
Given:
r = 3.8x10⁵ km = 3.8x10⁸ m, the distance between the earth and moon,
F = 20.46x10²⁵ N, the gravitational force between the earth and the moon,
G = 6.674x10⁻¹¹ m³/(kg-s²), gravitational constant
M = 5.972x10²⁴ kg, the mass of the earth.
Let m = mass of the moon.
Then
F = (G*M*m)/r^2
or
m = (F*r^2)/(G*M)
In SI units,
m = [20.46×10²⁵ * (3.8×10⁸)²]/[6.674×10⁻¹¹ * 5.972×10²⁴]
= 7.4125×10²⁸ kg
Answer: 7.4125x10²⁸ kg
