10 burgers cost $60. What will 15 burgers cost?
To get the answer we can first divide 60 by 2 to see how much cost 5 burgers. Then we have to multiply that result times 3 to get the answer.60:2=30$ ----- 5 burgers.30$*3=90$ - its the answer
60/10=6 dollars/burger6x15=90 dollars/15 bugers
