A(4) =13
a(1) = 1
a(2)=5
a(3)=9
a(4)=13
a(5)=17
So, the arithmetic formula is: a(n) = a(n-1) + d
If we look at the formula, the numbers change by +1, which is our d
We can test our formula by look for 2,
a(2)= a(2-1)+4
a(1)+4
1+4
a(2)=5
Even though the sequence tells us, we can test our formula anyhow
a(4)= a(4-1)+4
a(3)+4
9+4
a(4)=13
0.28 is the same thing as 28/100.
We can divide 4 to the top and the bottom.
28 / 4 = 7
100 / 4 = 25
Therefore our answer in simplest form is 7/25.
Answer:
13
Step-by-step explanation:
104×7=728
728÷56=13
Answer:
<u> 3/4 km</u>
Step-by-step explanation:
<u>turn 3/4 km into a fraction first to compare it to 0.8 km</u>
which is 0.8 km and 0.75
- so the shorter distance is 3/4 km (0.75 km)
Answer:
The first digit of a two digit number can be any of digits 1 - 9. It cannot be 0 though. Therefore there are 9 possible digits for the first place.
There are 5 possible digits for the second position. The two digit number has to be odd and therefore the final digit must be 1,3,5,7 or 9
Therefore for each and every one of the nine first digits there are 5 digits that the second can be.
Therefore ANSWER = 9 * 5 = 45 possible permutations.
2. The largest two digit number = 99
Subtract 57 and you get 42
ANSWER = 42
The forty two numbers are 58 ,59, 60, 61......98, 99