Answer:
60 WPM
Step-by-step explanation:
Answer:
<h2><em>
30page essay/min</em></h2>
Step-by-step explanation:
Speed is the change in distance of a body with respect to time.
Speed = Distance/Time
If the library made a copy of leslie's 3 page essay in just 1/10 of a minute, this means that she made 3 pages in (1/10 * 60)secs i.e 6secs
To get the speed, we need to calculate the amount of page of essay that are produced in a minute (60secs).
If 3 page essay = 6secs
x page essay = 60 secs
cross multiply
3*60 = 6x
180 = 6x
x = 180/6
x = 30
<em>This shows that 30 page essays are produced in just a minute. Hence the speed of the copy machine is 30page essay/min.</em>
Answer:
3.183.10^7
Step-by-step explanation:
X=amount of children tickes sold
y=amount of adult tickets sold
2 times of children as adult
x=2y
total cost is 800
5x+10y=800
divide both sides by 5
x+2y=160
x=2y
2y+2y=160
4y=160
divie by 4
y=40
x=2y
x=2(40)
x=80
80 children tickets
40 adult tickets
The relationship for radioactive decay is given by:
N(t) = N₀ * exp(-kt), where k is the decay constant.
We may substitute k using the equation:
k = 0.693 / t₀.₅, where t₀.₅ is the half life of the substance
The equation becomes:
N(t) = N₀ * exp(-0.693t / t₀.₅)
The ratio of N(t) : N₀ is 0.717%, or 0.00717. Using this
0.00717 = exp(-0.693t / 5,730)
0.693t = 28,294
t = 40,828.3
The person was alive almost 41,000 years ago.
