Mathematics: Brant rented a paddle boat it cost 6.50 to rent the boat Plus 2.25 per hour for a fraction of an hour a proportional amount is charged Brandt use the paddle boat for 1 1/2 hours Brett paid with a $20 bill how much change did Brent receive

Integer is a whole number and rational is a decemal...

Brant rented a paddle boat it cost 6.50 to rent

angelvega2003

21.01.2022

$10.13

Step-by-step explanation:

Given the rent fee is $6.50 plus $2.25/hr proportionally charged on hours used.

#We calculate bills total expenses after 1 1/2 hrs:

$Total=Fixed +Variable cost\\\\=6.50+2.25\times1\frac{1}{2}\\\\=9.875$

#Subtract bills total expense from the amount he gives to determine the balance amount:

$Balance=Amount- Expenses\\\\=20-9.875\\\\=10.125\approx10.13$

Hence, Brent's change is $10.13

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