Answer:
1 hour and 15 minutes
Step-by-step explanation:
Nuala drives 20 miles per hour, which makes the trip 2 hours and 30 minutes long. If Nuala drove at 40 miles per hour, the trip would take 1 hour and 15 minutes. Why? Because:
40 miles per hour
50 miles- 40 miles=10 miles (that makes 1 hour already)
so now we figure out how long it takes for 10 miles at the speed of 40 miles per hour.
10/40=1/4 and 1/4 of an hour or 60 minutes is 15 minutes.
Therefore, it would take Nuala 1 hour and 15 minutes if she drove 40 miles per hour.
Hope this helped!
Answer:
Step-by-step explanation:
So we have the function:
To solve for the inverse of a function, change f(x) and x, change the f(x) to f⁻¹(x), and solve for it. Therefore:
Add 9 to both sides:
Take the natural log of both sides:
The right side cancels:
Divide both sides by 6:
And we're done!
36 miles your welcome also can I please have brainliest
Answer:
the answer would be 32 then. you start with 7 then add 1 then Multiple by 4 which equals 32
Answer:
The Answer is: The first number is 10 and the second number is 8.
Step-by-step explanation:
Let f = first number and s = second number.
The first number is 2 larger than the second:
f = n + 2
The numbers times each other is 80:
f * n = 80
Substitute the value of f, which is (n + 2):
n(n + 2) = 80
n^2 + 2n = 80
n^2 + 2n - 80 = 0
(n + 10)(n - 8) = 0
n^2 + 10n - 8n - 80 = 0, so the first number is 10 and the second one is 8.
Another method, just from thinking about it:
factor 80:
8 * 10, is the first factoring I thought of. I then noted that the difference between the two is 2 and if you multiply them they equal 80.
Hope this helps! Have an Awesome Day!! :-)
