Answer:
B = j + H
Step-by-step explanation:
Given:
j = - H + B
Solve the equation for B
j = - H + B
Add H to both sides of the equation
j + H = - H + B + H
j + H = B
B = j + H
This is a physics problem.
The law is that the momentum is preserved: total momentum before collsion = total momentum after collision
Momentum before collision = 80 kg.m/s - 100 kg.m/s = -20 kg.m/s
Then answer is b. - 20 kg.m/s
Charles' weight = Edith's weight + 20% of Edith's weight
We'll use a variable to represent Edith's weight, x.
The decimal form of 20% is 0.2.
60 = x + 0.2x
60 = 1.2x
x = 50
Edith's weight is 50kg.
Hope this helps!
Answer:
y= x-4
Step-by-step explanation:
