Aworker at a clothing company uses 200 buttons to make 50 shirts. at this rate how many buttons would the worker use to make 350 shirts?

1,400 buttons 50x=200 buttons x being the variable for shirts  x=4 350 times 4 is equal to 1400 

You would see how many times 50 can go into 350. 50 can go into 350 7 times. you then take the 200 and multiply it by the same number you multiplied the 50 by. that number was seven. So you would multiply 200 by 7 and get 1400. it took 1400 buttons to make 350 shirts.