For every 10 students there needs to be 1 chaperone during the trip to the 5 museum. Which of the following ratios does not represent the student to chaperone ratio. 1:10

10 to 1

10:1

10/1

Other:

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?