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In a toy store, The ratio of the number of dolls to the number of teddy bears is 7:6. If the store has 140 dolls, how many teddy bears are in the store?

Respuesta :

This is a proportion problem

7/6 = 140/x

Now cross multiply

140 x 6 = 840

7x = 840

Divide both sides by 7

Answer is 120 teddy bears


7/6 = 140/x
7x=6*140
7x=840
x=120