Dean High School is taking a group of students on a cruise to Puerto Rico. The total number of tickets that were purchased is 90. There needs to be a ratio of 5:1 students to adults. Please answer the 3 questions How many Students are going?
How many Adults are going?
There are other schools from Holyoke going on the cruise too. If the cruise ship holds a maximum of 400 passengers and each school gets the same number of tickets, how many schools can come on the cruise?

75 students are going. 15 adults are going.

Step-by-step explanation:

Since the question says there are 90 tickets in total, 75 student ticket plus 15 adult tickets equals 90 tickets in total. Also 75 divided by 15 is 5, which suits the ratio of 5 students to per adult.

There wasn't enough information for me to solve the last one, but I hope this helps!

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!