Andy buys x cakes. betty buys 4 times as many cakes as andy. colin buys 3 more cakes than andy. each cake costs 65p. the total cost of the cakes is ? 52.65. how many cakes did each person buy?

Andy bought = 13 cakes.

Betty bought = 52 cakes.

Colin bought = 16 cakes.

Step-by-step explanation:      

We are told that Andy buys x cakes. Betty buys 4 times as many cakes as Andy. So number of cakes bought by Betty will be 4*x.

We are also told that Colin buys 3 more cakes than Andy. So number of cakes bought by Colin will be x+3 cakes.

Each cake costs 65 p. The total cost of the cakes is $52.65. We can represent this information as:

Let us combine like terms.

Therefore, Andy bought 13 cakes.

Let us find number of cakes bought by Betty by substituting x=13 in expression 4*x.

Therefore, Betty bought 52 cakes.

Now we will find number of cakes bought by Colin by substituting x=13 in expression x+3.

Therefore, Colin bought 16 cakes.

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

just sum

10 + 10 = 20