Answer:
$581,500
Step-by-step explanation:
Let = $550,000 the annual sales mean and = $35,000 the standard deviation.
If your friend's sales total for the year were 0.9 standard deviations below the mean, then he would have sold
But, he sold minus 0.9 standard deviations below the mean, so he really sold
50 yards= 1800 inches so 1800 divided by 2 is 900, so 900 pieces os 2 inch long tape!
Answer:
140 child tickets were sold
Step-by-step explanation:
a = number of adult tickets
c = number of child tickets
a+c = 350
6.50 c + 8.50a = 2695
Multiply the first equation by -8.50 together
-8.50c -8.50c =-2975
Add this to the second equation to eliminate a
-8.50c -8.50c =-2975
6.50 c + 8.50a = 2695
---------------------------------
-2c + 0a = -280
Divide by -2
-2c/-2 = -280/-2
c = 140