It takes 2 hours to meet
A to B is 100 miles
A has 30 mph: after 2 h has made 60mph
B has 20 mph: after 2 h has made 40 mph
60+40=100 miles
The battery would be $. 50 meaning the torch is $2.00. 2 dollars is 80% of $2.50 meaning the torch is 80% of the total price.
Answer:
(5-2z)(5+2z)
Step-by-step explanation:
25 -4z^2
Rewriting
5^2 - (2z)^2
This is the difference of squares a^2 - b^2 = (a-b)(a+b)
(5-2z)(5+2z)
He swam 1,800 laps total in 12 weeks. Each week, he swam 150 laps because 1800/2=150 in 5 days. Each day, he swam 30 laps because 150/5=30, in 45 minutes. His average time was 30/45=2/3 At that rate, in one hour, he would swim 2/3*60 = 2/3 x 60 = 40 laps/hour Final answer is 40
Step-by-step explanation:
22/40 = 11/20 = (11 * 5)/(20 * 5) = 55/100.
