Answer:
The answer is in the web link
Step-by-step explanation:
1.) https://shsmrward.weebly.com/uploads/1/0/0/3/10037735/independentdependent_ak.pdf
(b - 4z)/7 = a
b - 4z = 7a
b = 7a + 4z
Answer: b = 7a + 4z
1) 2a = 9b ⇒ 2:9
2) a + b = 3b ⇒ a = 2b ⇒ 1:2
Answers: 2:9 and 1:2
1st, 9/14 = .643 and 8/21 = .381.
2nd, 9/14 x 8/21 = .643 x .381
3rd multiply and solve .643 x .381 =
4th answer is 0.245
Hope I helped
Answer:
Third option
Step-by-step explanation:
