Okay, the first equation you have to use is 3x + 10y = 50 because when you add all these weights up (3 lb weights, represented by 3x, and 10 lb weights, represented by 10y), you get 50 lbs.
As you can see, there is no such equation here. But, if we move things around a bit, we get:
3x + 10y = 50
3x = 50 - 10y
The correct answer is B. 3x = 50 - 10y
Answer:
D
Explanation:
because it restates the claim, and then provides evidence toward the argument.
hope this helps
Answer:
Rosaura is only nine years old
Explanation: