Answer:
441 miles
Step-by-step explanation:
Write and solve an inquality to answer this question:
($24.95/day)(2 days) + ($0.34/mile)x ≤ $200
The first term becomes $49.30; the second term $0.34x; their sum must be ≤ $200.
More concisely, 49.30 + 0.34x ≤ 200.
Isolate x by subtracting 49.30 from both sides:
0.34x ≤ 150.10.
Divide both sides by 0.34:
x ≤ 150.10/0.34, or 441.47 miles. You must round this off to the nearest whole mile, which would be 441 miles.
Answer:
0.196
Step-by-step explanation:
Let :
Expresso drink = A
Plain coffee = B
Food = F
P(A) = 0.56
P(B) = 0.44
P(F) = 0.40
P(F|A) = 0.35
P(F|B) = 0.30
Probability that a customer purchases a specialty expresso coffee and a food item :
P(F|A) =. P(F n A) / P(A)
P(F n A) = P(F|A) * P(A)
P(F n A) = 0.35 * 0.56
P(F n A) = 0.196
<span>Generally according to mathematical formulas the standard deviation is defined as the square root of the variance.Same formula applied to this question where variance is 100 which results that standard deviation is 10.Whereas variance is the square of the standard deviation which is 100 derived in the question.</span>
