This is the concept of algebra. from the given equation;
y-9+9=-17+9
The original equation was y-9=-17
The subtraction was undone by applying inverse operation of adding 9 to get;
y-9+9=-17+9
y=-8
The aim of doing this was to obtain the value of the unknown which is y
"at least" means less than or equal to, because it means that it could be as many as 8, but possibly less. with that in mind:
n ≤ 8 is your inequality. the number of people was less than or equal to 8
Answer:
-35-18x
Step-by-step explanation:
just calculate the difference
-35-20x+2x
-35-18x
Answer:
25 in; C
Step-by-step explanation:
Hey!
There probably is a reason she is deleting. You could contact her or ask some help elsewhere.
Anyway! I'm trying to get this in fast. (Remember the Pythagorean Theorem?) That will be very useful here since it is a right triangle.
<u>L² + L² = H² (or H² - L² = L²):</u>
In that case, we'll use the second one because our Hypotenuse is given.
We can substitute each value of the numbers:
65² - 60² = L²
Evaluating:
4225 - 3600 = 625
√625 = 25 inches
Thusly, the third side would be 
<em>Also note we could have simplified into a Pythagorean Triple. This method is a simpler more basic method for learning the concept.</em>
Hope this helps!