First, divide both sides by 3 to get log2x = 4/3.
Since you know a regular log has base 10, another way to write log2x = 4/3 is 10^(4/3) = 2x.
Then, divide both sides by 2.
x = 10.7722
Answer: 1.4
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Set up two equations:
1st: P (for Price family) + J (for Jenkins family) = 45 hours
2nd: 20P + 35J = 1200 liters
Rewrite the first equation as P = 45 – J
Replace P in the second equation:
20(45-J) + 35J = 1200
Simplify:
900 -20J + 35J = 1200
900 +15J = 1200
Subtract 900 from both sides:
15J = 300
Divide both sides by 15:
J = 300/15
J = 20
Jenkins used theirs for 20 hours
Price used theirs for 45-20 = 25 hours.
