Kory and Leanne will meet each other again after 36 minutes from starting i.e. at 10:36 am .
<u>Step-by-step explanation:</u>
Here we have , Leanne runs a lap in 12 minutes. Kory runs a lap in 9 minutes. We need to find out that If they both start running at 10 am, at what time will they both cross the start together again . Let's find out:
Kory runs a lap in 9 minutes and , Leanne in 12 minutes , in order to find at what time will they both cross the start together again we will find LCM of 9 & 12 :
⇒ ![\frac{9(4)}{12(4)}](https://tex.z-dn.net/?f=%5Cfrac%7B9%284%29%7D%7B12%284%29%7D)
⇒ ![\frac{36}{36}](https://tex.z-dn.net/?f=%5Cfrac%7B36%7D%7B36%7D)
So ,LCM of 9 & 12 is 36 .That means Kory and Leanne will meet each other again after 36 minutes from starting i.e. at 10:36 am .
In clear way , Kory will run race as :
1st lap = 9 minutes
2nd lap = 18 minutes
3rd lap = 27 minutes
4th lap = 36 minutes , i.e. at 10:36 am he'll complete his 4th lap
For , Leanne
1st lap = 12 minutes
2nd lap = 24 minutes
3rd lap = 36 minutes i.e. at 10:36 am he'll complete his 3rd lap .
This means Kory & Leanne will meet at 10:36 am completing there 4th and 3rd lap respectively .
Well... we know that... there are 365 days in a year, unless is a leap-year, but we'll use 365 anyway
and each day has 24hrs, each hr has 60 minutes
so. let us use those ratios
![\bf 2.1million\iff 2.1E6\iff 2,100,000\qquad thus \\\\\\ \cfrac{2100000\ deaths}{1\ year}\cdot \cfrac{1\ year}{365\ day}\cdot \cfrac{1\ day}{24\ hr}\cdot \cfrac{1\ hr}{60\ minute}](https://tex.z-dn.net/?f=%5Cbf%202.1million%5Ciff%202.1E6%5Ciff%202%2C100%2C000%5Cqquad%20thus%0A%5C%5C%5C%5C%5C%5C%0A%5Ccfrac%7B2100000%5C%20deaths%7D%7B1%5C%20year%7D%5Ccdot%20%5Ccfrac%7B1%5C%20year%7D%7B365%5C%20day%7D%5Ccdot%20%5Ccfrac%7B1%5C%20day%7D%7B24%5C%20hr%7D%5Ccdot%20%5Ccfrac%7B1%5C%20hr%7D%7B60%5C%20minute%7D)
so.. multiply and simplify, cancelling out any like-units atop and bottom
notice, all we do, is use the ratios, in a way, that if we need one unit to be changed, we flip the ratio
for example, to toss away "year" unit, since in the first fraction is at the bottom, then we put it on the top on the ratio, year/year = 1, effectively cancelling the unit
Answer:
Statement A is correct
Step-by-step explanation:
Statement A is correct: Model A1 (0.25) is more prefered than Model C3 (0.15)
Answer:
First one x = 14
Step-by-step explanation:
First one
The sum of the interior angles of a triangle = 180
so
(180-124) + (180-6x) + 2x = 180
x = 14
Answer:
28,000 dollars
Step-by-step explanation:
28000x4 years=112000
112000x 25/100=
28000
-Hope this helps! :)