So first convert 2 3/4 to improper fraction
2 3/4=8/4+3/4=11/4
11/4a=19 1/4
convert 19 1/4 to improper
19 1/4=76/4+1/4=77/4
11/4a=77/4
multiply both sdie sby 4
11a=77
divide by 11
a=7
$7.5 dollars since 3/4 is 75% and since it’s $10 it can be calculated
Answer:
5
Step-by-step explanation:
If 3.5 cups of flour makes 7 servings, then 0.5 cups of flour are needed for each serving if you divide 3.5 by 7, 10 times 0.5 is equal to 5.
(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)