Answer:
b = -n/(2-S) -a
Step-by-step explanation:
S = n/2 (a+b)
divide both sides by (a+b)
S/(a+b) = n/2
flip the equation on the left (it is the same equation just negative)
-(a+b)/-S = n/2
divide both sides by -S
-a-b = n/(2-S)
add a to both sides
-b = n/(2-S) +a
flip the sign (multiply/divide by -1)
b = -n/(2-S) -a
2m+2n+7 is the correct answer
Answer:
47
Step-by-step explanation:
The order of operations is encoded in PEMDAS, or Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction. Because there is only addition and subtraction, we just calculate it from left to right: 42 + 7 - 2 = 49 - 2 = 47.
Answer:
Step-by-step explanation:
the students that are in the survey are in it because they like the subject, rather than picking students from both types of groups, the ones that aren't doing remote learning and the ones that are doing remote learning.
