Ahot air balloon left the ground and rose to an altitude of 240 feet in 8 minutes. what was the average rate of increase for the hot air balloon in feet per minute?
a)3 feet per minute
b)30 feet per minute
c)24 feet per minute
d)16 feet per minute

step-by-step explanation:

ask goog great chance of finding the solution there

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!