6+12= 18
6+6+6=18
18-4=14
Explanation:
Before he was 6.
So 6+12 would give us 18 which will be his age after 12 years.
and 3 times 6 equals 18
we want to know what the current age was so
we subtract 18 - 4 which is equal to 14
True because an integer needs to be a positive or negative whole number. So when you round it it’s 75
There are 28 ways in which a couple can choose the name of the baby for its name.
<h3>What is defined as the combination?</h3>
- A combination is an algebraic technique for determining the number of possible arrangements in a set of items in which the order of the selection is irrelevant.
- You can choose the items in just about any order in combinations. Permutations and combinations are often confused.
If we need to choose objects from two groups of x and n objects so that one object from each group is chosen, we can do so by calculating the combinations possible by:
= ˣC₁ × ⁿC₁
Let 'x' be the set of first name = 7
Let 'n' be the set of second name = 4
Putting the values in formula;
= ⁷C₁ × ⁴C₁
= 7 × 4
= 28
Thus, there are 28 ways in which a couple can choose the name of the baby for its name.
To know more about the combination, here
brainly.com/question/12725706
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The complete question is-
A couple has narrowed down the choices of a name for their new baby to 7 first names and 4 second names.
How many different first- and second-name arrangements are possible?
Answer:
x = 6
Step-by-step explanation:
18 - x = 12
-18 -18
-x = -6
--- ---
-1 -1
x = 6
Sergio did not use 15 inches of his yellow yarn
