Answer:
4500000
Step-by-step explanation: Let me know if this helped
Kate needs to swim 40 laps to come complete 66 laps
Answer:
C. 150
Step-by-step explanation:
60+150+120+270=600
600/4=150
Let n be a number of balls: n = 14
In one pan you have 8 balls: 8n
In the other pan you have the rest of balls (14 - 8 = 6) along with a <span>weight of 20 grams = 6n + 20
So the pans are balanced:
8n = 6n + 20
Now, just solve the equation:
8n - 6n = 20
2n = 20
n = 20/2
n = 10
So, you know that a ball weights 10 grams.</span>
