Answer:
60T + 55T = 150
Step-by-step explanation:
The cars takes 1.304 hrs (1h 18 min aprox) to pass each other
Hope this helps
Answer:
84 es un número compuesto. 84 = 1 x 84, 2 x 42, 3 x 28, 4 x 21, 6 x 14 o 7 x 12. Factores de 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28 , 42, 84.
Step-by-step explanation:
Answer:
21 liters of the 12% solution and 4 liters of the 37% solution
Step-by-step explanation:
Represent the number of liters of the first solution as x and the second as y. Now, the total liters of iodine is going to be 16% of 25 = 4 liters of iodine, and the total liters of each solution is going to be 25. Now, we can setup two equations:
0.12x+0.37y = 4
x + y = 25
Multiplying the bottom equation by 0.12, we have
0.12x + 0.12y = 3
Subtracting, we have
0.12x+0.37y=4
-
0.12x + 0.12y = 3
= 0.25y = 1
= y = 4
= x = 25 - 4 = 21
