Question

ith Variables on Both Sides 2-6 Ratios, Rates ides, you can use e on one side. An variable makes -alue of the Exercises Solve each equation. If the equation is an identity, write identity. If it has no solution, write no solution. 24. x + 4 = -2 25.6 - 0.25f = f-3 26.30h - 4) = (24-6h) 27. 5n = 20(4 + 0.251) Quick Review A ratio between numbers me is called a rate. A conversion equivalent measures in differe and is always equal to 1. To co another, multiply the original that has the original units in th desired units in the numerator. 28. Architecture Two buildings have the same total height. One building has 8 floors with height h. The other building has a ground floor of 16 ft and 6 other floors with height h. Write and solve an equation to find the height h of these floors. 29. Travel A train makes a trip at 65 mi/h. A plane traveling 130 mi/h makes the same trip in 31 Example A painting is 17.5 in. wide. What Recall that I in. = 2.54 cm. ach side by 2. hours. Write and solve an equation to fir distance of the trip. 17.5 in. - 2.54cm = 44.45 cm The painting is 44.45 cm wide. Same trip in 3 fewer Formulas 2-7 and 20

Please answer #29 and show work.

Answer 1

d the trip be d. let the distance let the time taken & by plane be by train te Now; d = d = 658 Et 130 X tp =-3 houss. Also given; tp - tt =-3 hours. so; Equeling the equations 65 Xtz 130x tp € 65 x t = -130 x (-3+4) of 6542 – 130:47 = - 390 g . 65th =890 t = 390 65 = 6 houss. Now d = - 6506 vita 390 miles - As Distance of the triß is 390 miles