5280 - 10 = 5270 ft, traveled by the 2nd place runner
5280 - 23 = 5257 ft, traveled by the 3rd place runner
Use a ratio equation5280/5270 = x/5257
Cross multiply:
5270x = 5280 * 5257x
= 27756960/5270x
= 5266.975 traveled by the 3rd place runner when the 2nd place runner crosses the finish line.
5280 - 5266.975
= 13.025 ft is the distance the 2nd place runner beats the 3rd place runner.
This makes sense because they were 13 ft apart when the winner crossed the line, the 3rd place runner is 13 ft behind the 2nd runner because he runs slower.
Answer:
80 copies
Step-by-step explanation:
4 minutes= 240 seconds. So I did 240 seconds divided by 3 seconds (one copy is made in that time) then you get 80. I don't know if that explanation make sense but the math checks out.
Answer:
(2x-1)(x-7)
Step-by-step explanation:
