While in europe, if you drive 105 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 30.0 mi/gal ? assume that 1euro=1.26dollar?

You would spend $95.10.

You use a series of conversion factors.

There are many conversions, so let's break it into parts.

Calculate the gallons used

1 week × 7days1week×125km1day×1mi1.60934km×1gal30.0mi =

18.123 gal (three significant figures plus two guard digits)

Calculate the cost

18.123 gal × 3.78541L1gal×€1.101L×$1.26€1 = $95.10

The answer has only three significant figures, so it is precise only to the nearest
10 ¢.

Notice how the conversion factors are set up so they cancel to give the desired units at the end.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: