You put them in fractions then cross multiple.
18/12 and 3/x so that's 36 equals 18x then you divide 36 by 18 which is 2.
Answer:
x = ±2
Step-by-step explanation:
3x ^2 -4 = 8
Add 4 to each side
3x ^2 -4+4 = 8+4
3x^2 =12
Divide each side by 3
3x^2 =12
3x^2/3 = 12/3
x^2 = 4
Take the square root of each side
sqrt(x^2) = ±sqrt(4)
x = ±2
Answer:
um
Step-by-step explanation:
100-15= 85%
2013-2003= 10 years
$71,000 * (0.85^10yrs)= $13,978<span>.</span>08
Did this make sense or would you like me to explain some more about something you are still not understanding? Please comment below :)