Answer:
15 mph
Step-by-step explanation:
The cyclists will cover distance at a rate proportional to their speed. So, the distance ratio is ...
faster cyclist distance : slower cyclist distance = 3 : 1
Then the faster cyclist covers 3 : (3+1) = 3/4 of the total distance, or (3/4)(40 mi) = 30 mi.
That distance took 2 hours for the faster cyclist, so the speed was ...
speed = distance/time = 30 mi/(2 h) = 15 mi/h
Stop playing around amd start paying attention in class STUPID KIDS
Answer: 81w^2 - 4u^2
Step-by-step explanation:
(9w - 2u)(9w + 2u) Apply the distributive property twice than combine them.
9w( 9w + 2u) = 81w^2 + 18wu
-2u(9w + 2u) = -18wu - 4u^2
81w^2 + 18wu - 18wu - 4u^2 Combine like terms
81w^2 - 4u^2
Hey there!
To start, first set up your expression like this:
(5x+17)-(3x-4)
You must set up your expression like this since in subtraction, order matters and the problem asks for the difference between the first plant and the second plant, respectively, meaning you must follow in this order.
Now, simplify:
(5x+17)-(3x-4)
(5x+17)+(-3x+4)
2x+21
Therefore, the difference the two companies would be 2x+21.
