Um... I think you mean decimal, fraction, and percentage, here it is:
Fraction: 55/1
Decimal: 55
Percentage: 5500%
Remember when you learning about the "Least Common
Multiple" and you wondered when in the world you would
ever need to use it ?
Well, here you are ! Hello !
The next time they will cross the starting line together is the
LCM (Least Common Multiple) of 30 and 40 .
Do you remember how to find it ?
Here's one easy way:
Count by 30s until you come to a number that's divisible by 40 .
Laura's first lap. . . . . . . . 30 seconds . . . not divisible by 40
Laura's two laps . . . . . . . 60 seconds . . . not divisible by 40
Laura's three laps. . . . . . 90 seconds . . . not divisible by 40
Laura's four laps. . . . . . 120 seconds . . . divisible by 40
After 120 seconds, Laura has completed four laps,
Shelby has completed only three laps.
Answer:
x = imaginary number
x₁ = 2<em>i</em>
x₂ = 6<em>i</em>
Step-by-step explanation:
x/(x - 5) =4/(x - 4)
x(x-4) = 4(x-5)
x*x + x*-4 = 4*x * 4*-5
x² -4x = 4x - 20
x² -4x - 4x + 20 = 0
x² - 8x + 20 = 0
x = {-(-8)±√((-8²)-(4*1*20))} / (2*1)
x = {8±√(64-80)} / 2
x = {8±√-16} / 2
√(-16) ∈<em> i</em>
<em>i </em>= set of imaginary numbers
√-16 = -4<em>i</em>
then:
x = {8±(-4<em>i</em>) } / 2
x₁ = {8+(-4i)}/2 = {8-4i)/2 = 4i/2 = 2i
x₂ = {8-(-4)}/2 = {8+4i}/2 = 12i/2 = 6i
Answer:
59.48%
Step-by-step explanation:
To determine the probability you have to calculate the z score which is equivalent to the number of standard deviations you are from the mean.
x is the value you want to know its probability
μ is the mean
σ is the standard deviation
A z score of -0.24 means you are 0.24 standard deviation at the left of the mean, the probability associated to a z of -0.24 can be found in a z table and it is 40.52%.
That probability cover the minimum value until 12 minutes, so the probability to need more than 12 minutes is 100 - 40.52 = 59.48%
Jabes travels 425.75km per day.
Unit rate is the amount of a certain item related to a single unit of another item.
In the question, we are given that Jabes traveled 3406km in 8 days
We have to find the distances that Jabes travel per day which will be the unit rate of distance per day.
The total distance that jabes traveled in 8 days = 3406 km
Thus, the distance per day jabes traveled can be calculated as:
8 days ⇒3406 km
or, 1 day⇒ 3406/8days = 425.75km
Thus,jabes traveled 425.75 km per day, using the unit rate.
Learn more about the unit rate here:
brainly.com/question/4895463
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