The sentence does not make sense because a test can only be 100% not 200
Can you insert a picture? This is confusing..
I think the answer would be 1.8
Answer:
a2=12 (the second term of the sequence is 12)
Step-by-step explanation:
a5=324
If the term to term rule is multiply by any number, we deal with geometrical sequence
The formula you should use is an= a1*r^(n-1) where n is the number of the term which we know. In our case we know
a5, so use 5 instead of n
Then you have a5=a1*r^4 where r is the number 3 (because each next term is greater than previous in 3 times)
a5=324
324= a1*3^4
324=a1*81
a1=4 (We find the first term of sequence, because having it you can easily search for every term )
Return to the formula an= a1*r^n-1
Now search for the second term using 2 instead of n in the formula
a2= a1*r^1
a2=a1*r, a1=4, r=3
a2=4*3=12
Answer:
The number is 62.
Step-by-step explanation:
If the number is xy then x + y = 8.
Also x - y = 4.
x + y = 8
Adding the above 2 equations eliminates y:
2x = 12
x = 6
and y = 8-6 = 2.
