The ratio of people that can be served to milligrams of baking soda needed is:
Serving : Baking Soda
2 : 1600mg
Since you want 10 people, you can multiply this ratio by 5:5 to get
10 people served = 8000mg needed
8000mg = 8 grams
1/a^3
The guy above me is probably also right
(3x² + 5xy - 2y²)
3x² + 5xy - 2y² <em>(rewrite the expression) (write 5xy as a difference)</em>
3x² + 6xy - xy - 2y² <em>(factor the expression) (factor out 2x from the expression)</em>
3x x (x + 2y) -y x (x + 2y) <em>(factor the expression) (factor out x + 2y from the expression)</em>
<em>Solution</em> : (x + 2y) x (3x - y)
Add -5 to each side of the inequality:
-3 ≤ x + 5 ≤ 8
-3 - 5 ≤ x + 5 - 5 ≤ 8 - 5
-8 ≤ x ≤ 3
Since x is an integer, there are 12 possible solutions belonging to {-8, -7, ..., 1, 2, 3}. In the sum of these solutions, the integers -3 to 3 cancel out, and the rest give
-8 - 7 - 6 - 5 - 4 = -30