Answer:
first option
Step-by-step explanation:
3x² - 18x + 5 = 47 ( subtract 5 from both sides )
3x² - 18x = 42 ( divide through by 3 )
x² - 6x = 14
Using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 3)x + 9 = 14 + 9
(x - 3)² = 23 ( take square root of both sides )
x - 3 = ± 
( add 3 to both sides )
x = 3 ±
Answer: Ron
Step-by-step explanation: 1/5 is a larger number than 1/100. 1/5 means that Ron talked for 20 minutes an hour, but Jacob talked on the phone for 1 minute an hour.
Step-by-step explanation:
I use desmos . com so it's easier.
A) 1.29
B) 0.91
C) 0.97
D) 1.05
Good Luck!
Answer:
20 is the father's 20 is the son
Step-by-step explanation:
20+20=40
40/2=20
40-20=20
another way:
20:n= 40
40-20=20
20:20=40
Answer:
it would be roughly 24 hours
Step-by-step explanation:
180÷14
12.8571428571
simplify to 12.85
12.85× X = 300
X=24
