If a number has three digits (like 758, 999 or 125) you take a look at the second last digits. If they are higher than 50 you round the first digit up. Otherwise you round it down. Finally you add two zeros.
In case of 758, the last two digits are 58. It is more than 50 so you round 758 to 800.
Hope it helps!
7 + 2x - 6 = -3x - 3 - 4
2x + 1 = -3x - 3 - 4
2x + 1 = -3x - 7
2x + 1 + 3x = -7
5x + 1 = -7
5x = -7 - 1
5x = -8
x = -8/5.
Answer:
the answer is c
Step-by-step explanation:
Answer: 15 kilómetros
Step-by-step explanation: Ellas viajaron 15 kilómetros por día, 210/14 = 15