X = first film....y = second film
x + y = 132
x = 2y - 3
2y - 3 + y = 132
3y - 3 = 132
3y = 132 + 3
3y = 135
y = 135/3
y = 45......so the 2nd film lasted 45 minutes
x = 2y - 3
x = 2(45) - 3
x = 90 - 3
x = 87 <=== the first film lasted 87 minutes
The correct answer is 6,840 meters. Hope this helps! ;)
A formula shows the relationship between units of measure, or variables
Answer: 18 units squared.
Step-by-step explanation:
Assuming you meant the height was 9 and the base was 4, or that the base was 9 and the height was four, simply do A = 1/2bh to get 18.