The given information tells us that for every one flight Muddville has, Fly Low airlines will have 3. This means they have a 3:1 ratio X = fly low airlines flight, Y = muddville airlines flights 3X + Y = 16 3 + 1 = 4 6 + 2 = 8 9 + 3 = 12 12 + 4 = 16 This means in one day, Fly low airport will have 12 flights while Muddville airport will have 4
Two numbers r and s sum up to \frac{1}{2} exactly when the average of the two numbers is \frac{1}{2}*\frac{1}{2} = \frac{1}{4}. You can also see that the midpoint of r and s corresponds to the axis of symmetry of the parabola represented by the quadratic equation y=x^2+Bx+C.
Consonant blends (also called consonant clusters) are groups of two or three consonants in words that makes a distinct consonant sound, such as "bl" or "spl." Consonant digraphs include bl, br, ch, ck, cl, cr, dr, fl, fr, gh, gl, gr, ng, ph, pl, pr, qu, sc, sh, sk, sl, sm, sn, sp, st, sw, th, tr, tw, wh, wr.