Answer:
90 mi/h
Step-by-step explanation:
Given,
For first 30 miles, her speed is 30 miles per hour,
Let x be her speed in miles per hour for another 30 miles,
Since, here the distance are equal in each interval,
So, the average speed of the entire journey


According to the question,



Hence, she needs to go 90 miles per hour for remaining 30 miles.
Answer:
$540
Step-by-step explanation:
1 member 1 day :$480/80/20 = $3
12 members 15 day = $3 * 12 * 15 = $540
Hope this helps!!!
Answer:
Stephanie has more than $900
Step-by-step explanation:
Represent the unknowns: a for Alexandra and s for Stephanie.
Then a + s > $2,500, and a = s + $700.
Substituting the latter into the former equation, we get:
(s + $700) + s > $2,500, or
2s > $1800
Then s > $900; Stephanie has more than $900.
Answer:
1
Step-by-step explanation:
Let point A be
and point B 

Use the point-slope formula and whichever point you want as , in this case I'll use
