X + 5y =20
2x - 7y = 9

Step-by-step explanation:

will multiply the first equation with -2

-2x-10y=-40

i will add it now to the second equation

-2x-10y=-40

 2x-7y=9

-17y=-31

y=31/17

and x=185/17

i can you with this sweetie!

step-by-step explanation:

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6