X + 1/4x = 15
4/4x + 1/4x = 15
5/4x = 15
5x = 60
x = 12
Let Alex's age is x and June's age is y y - x = 7 .........(1)
(x+5) + (y+5) =31
x + y = 21 .........(2)
by adding 1 and 2
2y = 28
y = 14
x = 7
Answer:
For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters. Notice that gravitational potential energy has the same units as kinetic energy, kg m2 / s2.
Step-by-step explanation:
Multiply both sides by 8 to cancel out the fraction. this comes to 24<5+p. add 5 to both sides. answer: 29<p. Hope this helps!!
