Joan has 294 marbles
dan has 7 marbles
        
             
        
        
        
Answer:
x = 4.5
Step-by-step explanation:
there's definitely other ways to solve this, but I used a proportion.

Then you can make this equation:
14x = 3.5 * 18
I solved for it and got 4.5 .
 
        
             
        
        
        
Answer:
14
Step-by-step explanation:
multiples are the list of number that can be multiplied by a certain number.
list the multiples
make a chart
 1 × 7 = 7 (odd)
2 × 7 = 14 (even)
the first even multiple is 14 (2×7)
 
        
             
        
        
        
Answer:
If she only ate 5 she'll need to get 3 more to keep up her streak of eating 8 cracker.
Step-by-step explanation:
8-3=5 is an equation you'd use.
 
        
                    
             
        
        
        
You can find counterexamples to disprove this claim. We have positive integers that are perfect square numbers; when we take the square root of those numbers, we get an integer.
For example, the square root of 1 is 1, which is an integer. So if y = 1, then the denominator becomes an integer and thus we get a quotient of two integers (since x is also defined to be an integer), the definition of a rational number.
Example: x = 2, y = 1 ends up with  which is rational. This goes against the claim that
 which is rational. This goes against the claim that  is always irrational for positive integers x and y.
 is always irrational for positive integers x and y.
Any integer y that is a perfect square will work to disprove this claim, e.g. y = 1, y = 4, y= 9, y = 16. So it is not always irrational.