Answer:
A. 75
Step-by-step explanation:
to get the average mark multiply the result by it's associated weight
93 × 10% = 9.3
82 × 30% = 24.6
72 × 40% = 28.8
60 × 20% = 12
then add these numbers to get his average 74.7 which is closest to 75
Answer:
quadratic
Step-by-step explanation:
hope you got it
Answer:
1. 6n - 15
2. x + 10
3. -4d + 15
4. true, associative property
5. distributive, commutative
Step-by-step explanation:
1. distribute 3/4 into the parentheses, so multiply 3/4 * 8 and 3/4 * -20
2. distribute the 2 into the parentheses so multiply 2 * 3x and 2 * 5, then combine like terms
3. distribute -3 into the parentheses so -3 * 4D and -3 * -5 then add like terms
4. add like terms on both sides of the equal sign and you get 10x on both sides. this is the associative property because it doesn't matter what's inside or outside the parentheses you get the same answer no matter how you add them up
5. the first part is distributive because you distributed the three into the parentheses and the second part is commutative because you switch them around and you can get the same answer
