equation csn be represented as
money left = 500 - (n-1)×4.65
so we can see in first week money left
= 500 - (1-1)×4.65= 500-0=500
which is true because first week chaya got gift card and does not spend any money.
now lets assume that on week n money left is 327.95
so by equation
500 -(n-1)×4.65 = 327.95
500- 327.95 =( n-1)× 4.65
n -1 = 172.05/4.65=37
n = 37+1 = 38
in 38th week money left would be 327.95
19/20 is less then 8/9. And I know how this fractions are labeled down in blocks
D is the answer, Since D is division and polynomials are not closed under division.
Answer:
This is experimental fraction question
We start with a high fraction and work downwards to a lower fraction
Reduce 10/16; = 6/12 = 1/2 observation = the fraction gets smaller by 1/5
Reduce 10/12 = 6/9 = 1/3 observation = the fraction gets smaller by 1/4
Reduce 8/8 = 3/2 observation = the fraction gets smaller by 1/3
We notice that when the fraction is whole number it reduces by 1/3
When the fraction is 3/4 it reduces by 1/4
When the fraction is 5/8 or 10/16 it reduces the fraction by 1/5
When the fraction is already half
We can prove it reduces again by a smaller than 1/5 number
1/2 = 10/20 = reduction = 6/15 = it has reduced by 3/15 = 1/6 to 1/7
This is because the numerator is reduced 40% and the denominator is reduced by 25%
Step-by-step explanation: