Answer:
The speed of the biker is 15
Step-by-step explanation:
First, you call the speed of the walker x, and the speed of the biker 2.5x.
Then you know that speed times time equals distance, so you set up and equation. You do x times 2, which is 2x, and then 2.5x times 2, which is 5x. Then, since the distance between them is 18 miles, the equation would be 5x-2x=18. You would get 3x=18, and x is 6. So 6 is the speed of the walker, and 6 times 2.5 = 15, so the speed of the biker is 15.
Answer:
690%
Step-by-step explanation:
To find the percent increase, take the new amount and subtract the original amount
5600000-80000=5520000
Divide it by the original amount
5520000/800000
6.9
Multiply this by 100% to change from decimal form to percent form
6.9*100%
690%
Answer:
d ≈ 10.5
Step-by-step explanation:
The formula for the diagonal of a retangular prism (cuboid) is
1.) Plug in all the values for l, w, and h
2.) simplify by squaring the terms inside the square root
5 * 5 = 25
6 * 6 = 36
7 * 7 = 49
3.) Add the terms
4.) Simplify
5.) Round to one decimal place
d ≈ 10.5
Answer:
y = -3x + 7
Step-by-step explanation:
when they are parallel, they always have the same slope.
f(x) - g(x) = 2x-3 -(4x+8)
= 2x-3 -4x-8
= -2x-11
