It's 2.5
6•b-11
The number is 11
18
11 times 9 = 99. The way you figure this out is whenever you have a one-digit number times 11, that number becomes doubled. For example, 11 times 9= 99. See, the nine got doubled. Another example, 6 times 11= 66. The six got doubled so it is now 66.
You get the sum of 11 two ways; 5,6 and 6,5.
Let the number be represented as ( x ). The expression for the sum of 10 times the number and 15 added to 11 times the same number can be written as ( 10x + (11x + 15) ). Simplifying this gives ( 21x + 15 ). Therefore, the sum is ( 21x + 15 ).
11x6
11 5 more than six is the same as saying 5+6
Six times.
1x11=11
4
1/6 x 6/11 = 6/66 = 1/11