The answer is $2.50 because you do 145-132.50=12.5
Then you divide by 5 because that’s the difference between students then the final answer is 2.50
Answer:
D) justified, assuming that the test was given fairly
Answer is a= 51/7 or 7 2/7
Step by step
-2/3 (a + 3) = 5/3a - 19
Distribute to resolve parentheses
-2/3a -2 = 5/3a - 19
Now to move variables to one side
Add 2/3a to both sides
-2/3a + 2/3a -2 = 5/3a + 2/3a -19
Combine like terms
-2 = 7/3a -19
Add 19 to both sides to isolate variable
-2 +19 = 7/3a -19 + 19
17 = 7/3a
Divide both sides by 7/3 to solve for a
(Remember when you divide a fraction, flip it and multiply.)
17 * 3/7 = a
51/7 = a
Picture attached shows steps in order, I think that is what you also needed?
44% of 8.79 =
0.44 (8.79) = 3.87 (thats rounded)
8% of 2.36 =
0.08 (2.36) = 0.19 (rounded)
25 students, homework 3 times per week, 12 problems each assignment
3(12) = 36 problems per student...36(25) = 900 problems for 25 students.
ur answer is 900