milla and luka are 3 kilometers apart and walking toward each other. millas average speed is 5 kilometers…

milla and luka are 3 kilometers apart and walking toward each other. millas average speed is 5 kilometers per hour and lukas is 4 kilometers per hour. which equation can be used to find t, the time it takes for milla and luka to meet? 5t + 4t = 1 5t + 4t = 3 5t - 4t = 0 5t - 4t = 3

milla and luka are 3 kilometers apart and walking toward each other. millas average speed is 5 kilometers per hour and lukas is 4 kilometers per hour. which equation can be used to find t, the time it takes for milla and luka to meet? 5t + 4t = 1 5t + 4t = 3 5t - 4t = 0 5t - 4t = 3

Answer

Explanation:

Step1: Recall distance - rate - time formula

Distance = Rate×Time. Milla's distance is $d_M = 5t$ and Luka's distance is $d_L=4t$.

Step2: Consider their relative motion

Since they are walking towards each other, the sum of their distances equals the initial distance between them. The initial distance between them is 3 kilometers. So $d_M + d_L=3$, which means $5t + 4t=3$.

Answer:

B. $5t + 4t = 3$