Given data:
Total no.of plants Maya needs to buy = 5
The cost of one nandinas = $5
The cost of one azaleas = $10
The total amount she spend in plants =$50
Let the cost of nandinas be x and azaleas be y.
therefore,
she needs to buy 4 nandinas and 3 azalease plants for $ 50
Then the equations is,
[tex]4x+3y=50[/tex]
