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Evgen [1.6K]
3 years ago
9

Bob has some 10 lb weights and some 3 lb weights. Together, all his weights add up to 50 lbs. If x represents the number of 3 lb

weights and y represents the number of 10 lb weights, which equation can be used to find the number of each type of weight Bob has?
A)3x – 10y = 50
B)3x = 50 – 10y
C)50 + 10y = 3y
D)50 + 3y = 10y
English
2 answers:
bekas [8.4K]3 years ago
7 0

Answer:

b

Explanation:

velikii [3]3 years ago
6 0
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
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