The Lakeside Marina charges a $45 rental fee for a boat in addition to charging $20 per hour. If Luis wanted to rent the boat for 5 hours, what would the total cost of the rental be? A.
$245

B.
$145

C.
$325

D.
$175

B.$145

Step-by-step explanation:

First the question said that to use the boat for one hour (per hour) cost $20. So to use it for 5 hours it will be =

1:$20

5:X

So you will cross multiply.

20*5=1*X=

100=1x

Divide both sides by 1

1x/1 * 100/1

X=100

Then yoiu add the rental fee for the boat

100+45

$145

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!