Expression: <span>y÷4−3</span>
When <span><span>y=20</span><span>y=20</span></span>, the value of the expression is 2.
Answer:
The expression is not defined in a set of real numbers.
The square root of a negative number is not defined in the set of real numbers.
Answer:
The numbers are 9, 19 and 76.
Step-by-step explanation:
Let's take the second number and make it a variable, like x. Now let's find all the other numbers in terms of x.
The first number in terms of x:

The second number in terms of x:

If we add them all up, these 3 numbers in terms of x must be equal to 104, so:

Now that we know the second number, we can find the other numbers since we already figured out their values in terms of x:


The first number is 9, second number 19 and the third number 76.
They stayed at the beach for 7 days. 4 x 3 = 12. 12 - 5 = 7
I think B is the answer. I am not sure