Answer:
45
Step-by-step explanation:
2a+3b=15, multiply everything by 3
3(2a+3b)=3(15)
6a+9b=45
Answer:
x = 6 2/3
Step-by-step explanation:
3x-4=16
3x=16+4
3x=20
x=20/3
x= 6 2/3 or 6.66666666666
The answer should be true
Answer:
Arithmetic, common difference is -11
Step-by-step explanation:
19, 8, -3, -14
common difference = d = 8 - 19 = -11
-3 - 8 = -11
-14 - (-3) = -11
Arithmetic, common difference is -11
Answer:
Density = 0.7g/cm³
Step-by-step explanation:
Density = mass / volume
Mass = 7g
Volume = 10cm³
Density = 7/10
Density = 0.7g/cm³