Answer:
Step-by-step explanation:
Givens
d = 2365 miles
r = 55 miles / hour
t = ?
Formula
d = r * t
Solution
2365 = 55 * t Divide by 55
2365/55 = t
t = 43 hours.
6x = 90
x = 90/6
x = 15
4x + 10y = 90
4(15) + 10y = 90
60 + 10y = 90
10y = 30
y = 3
Answer: Last option
x = 15, y = 3
x = 7
To answer items such as this, we directly substitute the a + 2 to the all the x's in the function such that,
f(a + 2) = (3 + a + 2) / (a + 2 - 3)
Simplifying the function generated above,
f(a + 2) = (5 + a) / (a - 1)
