A = 4 B
A + B = 160
_____________
A + B = 160
4 B + B = 160
5 B = 160 Divide both sides by 5
B = 160 / 5 = 32 min
A = 4 B = 4 * 32 = 128 min
Write and solve a system of equations to solve the problem.
At a film festival, Film A is 4 times as long as Film B. Together, the films are 160 min long. How long is each film?
2 answers
Write and solve a system of equations to solve the problem.
At a film festival, Film A is 4 times as long as Film B. Together, the films are 160 min long. How long is each film?
AB = 160; 4A = B
Film A: 40 min, Film B: 120 min
40 * 4 =160
120+40=160
At a film festival, Film A is 4 times as long as Film B. Together, the films are 160 min long. How long is each film?
AB = 160; 4A = B
Film A: 40 min, Film B: 120 min
40 * 4 =160
120+40=160
1 answer