<span>
1, 3, 5, 7, 9 are the possible digits for the tens digit. Notice they are all odd.
My reasoning:
</span><span>
When you multiply any 2 numbers together, the last digit of the result will be the last digit of the product of the original last digits (ex. 12*7 = 84: 7*2 = 14 : 4 is last digit)
</span>
The last TWO digits of the result will be the same as the last 2 digits of the product of just the last two digits. (ex, 1422*234 = 332,748: 22*48 = 748 : 48 are last two digits )
If is a perfect square ends in 6, the last digit squared must end in 6 as well.
The only single digit numbers squared that end in 6 are: 4*4=16 and 6*6=36
They are the only 2 so the number that is being squared must end in 4 or 6
Let the second last digit be X. X can be any digit.
So the last 2 digits of our number that is being squared are either X6 or X4
That is, the last 2 digits of the number are either (10X+6) or (10X+4),
this will result in X always being an odd number.
400 x 25.72 = 10,288 thai baht
Answer:
the answer has to be 3(17-y)
Step-by-step explanation:
I'm pretty sure about that cause what I did at first is subtract the numbers.
<em>6</em><em>0</em><em>-3y-9</em>
=51-3y
factor our 3 from the expression.
3(17-y)
Step-by-step explanation:
1 min = 60 sec
Boxes both can fold per min = 30 + 20 = 50
No of boxes to fold = 200
Time taken in sec = 200 ÷ 50 = 4 min = 60 x 4 = 240 sec
180/3 for square yards
multiply answer by $15 for the answer.....hope this helps :)
