The difference of finish times has a mean of
μ = 105 -98 = 7 . . . . minutes
and a variance of
σ² = 10² +15² = 325 . . . . minutes²
Using a probability calculator, we find the probability to be
p(-5 < x < 5) ≈ 0.2030
Answer:
Sandwich Hut
Step-by-step explanation:
Benny's Sandwiches : 4 sandwiches for $5 = $1.25 for each sandwich
ABC Sandwiches Inc. : 2 sandwiches for $3 = $1.5 for each sandwich
Sandwich Hut : 1 Sandwich for $2 + Buy one, get 1 for free = $1 for each sandwich
When we check the prices for per sandwich it is clear Sandwich Hut gives the best deal.
Answer:
20 ft
Step-by-step explanation:
The ratio of object height to shadow length is (6 ft)/(1.5 ft) = 4.
The object is 4 times as tall as its shadow is long, so the pole is 4×5 ft = 20 ft tall.
Answer:
It would be 35/77 and 33/77
Step-by-step explanation:
You multiply the denominators until they are equal
Answer: y=-2/5x-3/5
Step-by-step explanation:
y=-2/5x+3
x=-2/5y+3
x(5y+3)=-2/5y+3×5y+3
x(5y+3)=-2
Devide by X on both sides
5y+3=-2/x
5y=-2/x-3
y=-2/5x-3/5
