So kids do not struggle as they get older. As younger kids, their brain is still developing.
You can use photomath it is a great app to find ONLY equations!
A
B
F
are all correct
I need to write more to get this published
Imagine, at the first day you have only one penny. Then tomorrow you have 2 pennies, next day you have 4 (2x2), next day you have 8 (4x2), next day you have 16 (8x2).... and so forth.
It looks like geometric sequence isn't it? (the ratio between the number of pennies that you have from the 2nd day and the 1st day is 2)
So, by using geometric sequence theorem we can total those pennies until day-27
S (total pennies at day-27) = (1)(2^27-1) / 2-1 = 2^26 pennies
So, you have 2^26 pennies.. a big number of pennies huh?=))
{The formula is: S = a( r^n-1) / r-1
Where:
a= the number of pennies that you've got at the 1st day
n= number of days you spent to collect those pennies)
r= the ratio of the number of pennies}
Answer:
GCF is 8
16 + 56
= 8(2 + 7)
Step-by-step explanation:
Here, we want to write the greatest common factor of 16 and 56
The greatest common factor is 8
We can use tie rewrite the sum as follows ;
16 + 56 = 8(2 + 7)
