Answer: We are given:
We need to find the z scores for the following vacation expense amounts:
$197, $277, $310
We know that z score formula is:
When 
, the z score is:
When 
, the z score is:
When 
, the z score is:
Therefore, the z scores for the vacation expense amounts $197 per day, $277 per day, and $310 per day are -0.83, 0.5 and 1.05 respectively
Answer:
In 12 months
Step-by-step explanation:
Let a = year when average the average cost of owning a freezer would be less than $117
($850 + $40a) / a < $117
$850 + $40a < $117a
collecting like terms
$850 < $77a
a = 11.04 months
Answer:
1,100 dollars divided by 5 friends is 220 dollars so each friend would have to pay 220 dollars
Step-by-step explanation:
<span>(x) - (0.03)(200) = 2.00
Let x be the </span><span>company charge to make the profit
solving for x gives 8$</span>
Let us say that:
o = cost of oranges per pound
p = cost of pears per pound
so that:
o = p – 2
Therefore:
10o + 8p = 61
10 (p – 2) + 8p = 61
10p – 20 + 8p = 61
18p = 81
p = 4.5
p = $4.5 per pound
So 3 pounds of pears would cost:
total cost = 3 * 4.5
total cost = $13.5
