Because 10 divided by 6 equals 6 tenths not 6 hundredths
He is not correct because 3.5 is actually 3 and 1/2
not 3/5
hope that helps @:)
The perimeter of a rectangle is calculated as
Perimeter= 2(length + breadth )
So, Perimeter = 2*length + 2*breadth
Now we are given the length as 34.2 meters and breadth as 27.8 meters
So the perimeter will be
2(34.2+27.8) meters

which equals 2(62) meters
Hence Perimeter = 124 meters
Hello there! :)

It's rational
it's an integer
Hope it helps!
~Just an emotional teen listening to her favorite song "Try Everything"


2) 5.625 mg will be left
Explanation:
1) Half-life = 17.5 days
initial amount of Arsenic-74 = 90 mg
To get the equation, we will use the equation of half-life:


2) we need to find the remaining amount of Arsenic-74 after 70 days
t = 70

So after 70 days, 5.625 mg will be left