Answer:
the rate of the first cyclist: 28km/h
the rate of the 2nd cyclist 28+4= 32km/h
Step-by-step explanation:
x= the rate of the first cyclist
x+4= the rate of the 2nd cyclist
after 4 hours: + the first cyclist travels 4x (km)
+ the 2nd cyclist travels 4(x+4) (km)
because the two cyclists are 240 km apart after 4 hours
=> 4x + 4(x+4) = 240 => x= 28
i hope it's useful forr u =)))
The last sentence or second
If you mean the garden's area in feet, it would be 7200 ft^2
We want to solve an equation, so we only need to use simple algebra.
The solution is: x = 3
The original equation is:
0.2*(15*x - 20) = 0.5*(16 - 2*x)
To solve this, we need to move all the terms with "x" to the same side, so first we need to expand.
0.2*15*x - 0.2*20 = 0.5*16 - 0.5*2*x
We can move all the terms with x to the left side, and the others to the right side:
0.2*15*x + 0.5*2*x = 0.5*16 + 0.2*20
3*x + 1*x = 12
4*x = 12
Now we can divide both sides by 4:
x = 12/4 = 3
x = 3
If you want to learn more, you can read:
brainly.com/question/24531705