Answer:
Step-by-step explanation:
1. 2a + 3a + 3 = 8
5a + 3 = 8
5a = 5
a = 1
2. 3a - 2a - 4 = 0
a - 4 = 0
a = 4
3. 4 + 3a + 6 = 16
3a + 10 = 16
3a = 6
a = 2
4. 12a - 6a + 6 = 24
6a + 6 = 24
6a = 18
a = 3
74.5 minutes
Turn every fraction denominator to 60 since those are minutes
5. 14.5
- ×7.5= -----
8. 60
1/2 × 30= 30/60
2/5×12= 12/60
3/10×6= 18/60
Add all of the numerators together for the total number of minuted
Answer:
A
Step-by-step explanation:
got it right on the test