While in brazil, jacob exchanged some
american dollars for brazilian currency,
brazilian real. he was given 45 brazilian
real for $55. what was the approximate
exchange rate for brazilian real per
dollar?

1:1.22  Look at explanation and picture.

Step-by-step explanation:

If Jacob was given 45 Brazilian currency items for $55 you would need to divide 55 by 45 to see how much American dollars it would take to recieve one Brazilian currency.

For one Brazilian currency you need about (fig A) american currency for 1 brazilian currency.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

(23*2)-12=x     x=34

step-by-step explanation: