Easy, just divide
kelly=440mi/8hr=220mi/4hr=110mi/2hr=55mi/1hr
alberto=468mi/9hr=156mi/3hr=52mi/1hr
55>52
kelly drove 55mi in 1 hour
55-52=3
she drove 3 miles more in 1 hour
Answer:
x = -0.4
Step-by-step explanation:
Answer: I think y is 32 im not good at this tho
Step-by-step explanation:
<span>x^2+4x-1/(x+2)^2=0
x^2 + 4x - 1 = 0
</span>

;
where a = 1, b = 4 and c = -1
Answer:
n = 16
Step-by-step explanation:
8n/9 = 6.4/0.45
Cross multiply.
0.45 * 8n = 9 * 6.4
3.6n = 57.6
n = 16