Mark is draining his pool to clean it. at 12: 00 p. m., he started to drain the pool. at 4: 00 p. m., the pool had 11,600 gallons of water. at 7: 00 p. m., the pool had 6,800 gallons of water. if draining the pool is modeled by a linear function, how many gallons of water were initially in the pool?

1800

Step-by-step explanation:

77

step-by-step explanation:

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!