Before leaving to visit mexico, levant traded 270 american dollars and received 3000 mexican pesos. when he returned from mexico, he had 100 pesos left. how much will he receive when he exchanges these pesos for dollars?

*9

Step-by-step explanation:

Given

levant traded 270 american dollars and received 3000 mexican pesos

Using uintary method

1 mexican pesos is equivalent to

Now he had 100 pesos left therefore he get

0.09\times 100=9 american dollar

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10