Is this an addition problem? If so,
h+h=2h.
Answer:
He gave $160.00 to each of his kids.
Equation: 20+(Y×3)=500
Step-by-step explanation:
Subtract the 20 from both sides, giving you 480 on one side. You then have Y×3=480
You divide 480 by 3, and that gives you your answer, 160 per kid.
x=0 is not the solution of this equation
you can put values and can check in these questions
Step-by-step explanation:
Z-score is calculated by the following formula:
Z = (X-mu)/sigma
where
X = data value
mu = mean
sigma = standard deviation
Given:
mu = 500
sigma = 100
X = 680
Z-score = (X-mu)/sigma = (680-500)/100 = 180/100 = 1.8