Lonnie visited one of the machines and bought some coffees, of which three turned out to be white. That means Lonnie used STACO machine which pattern is giving 3 white every 1 black coffees.
<span>He went back to the same machine for the afternoon and take another 3 coffees. Since the machine created 3 white in the morning, it should make 1 black coffee in the first run. The 2nd and 3rd run would give white coffee.
So, Lonnie will have 2 white coffee.</span>
Answer:
13/15
Step-by-step explanation:
2/3 + 1/5
You first,
- Find the L. C. M, i hope u know the full name, if u don't, let me know in the comment section.
- the L. C. M is 15
- therefore it will be 10+3/15
- 13/15
Answer:
(9, 6)
Step-by-step explanation:
add equations together: (x + y = 15) + (x - y = 3) --> x + x + y - y = 15 + 3 --> 2x = 18
isolate the variable: 2x/2 = 18/2 --> x = 9, so the x-coordinate is 9
substitute 9 in x's place in one of the equations: 9 + y = 15
solve for y: y = 15 - 9 --> y = 6, so the y-coordinate is 6
combine x and y coordinates together: (9, 6)
Answer:
Step-by-step explanation:
Since the heights of women are normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = heights of women.
µ = mean height
σ = standard deviation
From the information given,
µ = 65 inches
σ = 2.5 inches
The probability that a woman is taller than 70 inches is expressed as
P(x > 70) = 1 - P(x ≤ 70)
For x = 70
z = (70 - 65)/2.5 = 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.977
Therefore,
P(x > 70) = 1 - 0.977 = 0.023
The percent of women that are taller than a man of average height is 0.023 × 100 = 2.3℅