Let's take a look at the equation.
×
Now, all you would have to do is solve it.
×
=
(can't be reduced any further)
Your answer would be .
I hope this helps!
Answer:
Both are correct.
Step-by-step explanation:
Let us say the domain in the first case, has the numbers. And the co-domain has the students, .
Now for a relation to be a function, the input should have exactly one output, which is true in this case because each number is associated (picked up by) with only one student.
The second condition is that no element in the domain should be left without an output. This is taken care by the equal number of students and the cards. 25 cards and 25 students. And they pick exactly one card. So all the cards get picked.
Note that this function is one-one and onto in the sense that each input has different outputs and no element in the co domain is left without an image in the domain. Since this is an one-one onto function inverse should exist. If the inverse exists, then the domain and co domain can be interchanged. i.e., Students become the domain and the cards co-domain, exactly like Mario claimed. So, both are correct!
let's say is "x", so "x" is then 100% of the whole bill.
we know 15% is 22.05, what is "x"?
Answer:
or
Step-by-step explanation:
Subtract 7 from both sides:
Subtract 10x from both sides:
Divide both sides by -5:
or
Answer:
The 1rst option. and the last option.
Step-by-step explanation:
If it is wrong I am so sorry.