Joonas buys a solar panel system for his house with an estimated annual yield of 4200 kWh, and pays for it with installation costs 6500 euros. Joonas lives south enough, so that the yield on the product system can be thought of as constant throughout the year. Joonas wants to reduce his electricity bill with an investment, which consists of a monthly fee of € 25 and electricity itself € 0.14 / kWh a) Mark the month since the system was installed with an x and form function S (x), which represents the savings in euros achieved by Joonas' investment. b) How much has Joonas saved in 3 years? c) Where to save the savings have amortized the purchase price of the system?

tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

welcome!

understand that i don't know the answers

will someone answer his question

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

is should be y = 5x

step-by-step explanation:

correct me if im wrong