If Patricia were to paint her living room alone, it would take 5 hours. Her sister Barbara could do the job in 7 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.