Step-by-step explanation:
Step one:
given
current (older) fridge
electricity charges= $17 monthly
maintenance costs= $220
let the number of months be x
and the total cost be yo
the expression for the cost for the old fridge is
yo=220+17x---------1
New fridge
electricity charges= $6 monthly
costs= $1,050
let the number of months be x
and the total cost be yn
the expression for the cost for the old fridge is
yn= 1050+6x---------2
Hence the system of equation for the situation is
yo=220+17x---------1
yn= 1050+6x---------2
Step two
for 10 years there are 12*10= 120 months
put x= 120 in both expressions and compare the total
yo=220+17(120)---------1
yo=220+2040
yo=$2,260
yn= 1050+6(120)---------2
yn=1050+720
yn=$1770
<u><em>Based on the analysis it will be less expensive to get the new fridge, hence buying the new fridge is worth it.</em></u>
6 quarters = $1.50
9 Nickels = $0.45
Total= $1.95
Answer is 6 quarters and 9 nickels.<span />
Answer:
2.354 × 10^2 is it
Step-by-step explanation:
Answer:
Hannah tipped was 13% of the bill.
Step-by-step explanation:
$78. 2 - $68 = $10. 2
$10. 2/$78. 2 × 100 = 13.04 = 13%
