To find the surface area of the figure shown, Mia found the surface area of the two triangular prisms and the rectangular prism.
From this, Mia subtracted 6 ft2. Did Mia make an error? Mia should have subtracted 16 square feet. Mia needs to subtract another 6 square feet. Mia must calculate each triangle separately. There is no error—Mia is correct.
So first I hope this helps! But from what I’ve learned in school is that a unit rate pretty much just mean *1... so in words the answers would be 1/6 and hour for every 2/23 miles