Mid section: 15 * 7 = 105
left triangle: 1/2 * 4 * 7 = 14
right triangle: 1/2 * 6 *7 = 21
total: 105 + 14 + 21 = 140 in^2
3 7/20 = 3 35/100 = 3.35
184.25 ÷ 3.35 = 55
Kenneth average speed 55 miles per hour.
(x)(2)+(x+20)(4)=3502x+4x+80=3506x+80=3506x+80-350=2706x+270/6=45 rate of bus45+20 = rate of train
Answer:
75.35
Step-by-step explanation:
I hope this helped
