Answer:
X = 55
M = 180
Step-by-step explanation:
I had the same question in my math class. I got it right.
You would just write f(x) (f of x) in for y: f(x) = 7x + 8.
Hope it helps.
Answer:
1 hour and 6 minutes
Step-by-step explanation:
- A temperature difference of 58-40 = 18°F was obtained in 2 hours
- A temperature difference of 68-40 = 28°F will be obtained in x hours
The next proportion must be satisfied:
18 °F / 28 °F = 2 hours / x hours
x = 2*28/18
x = 3.1 hours in total
Given that she has already waited 2 hours, she must wait 3.1 - 2 = 1.1 extra hours. 1 hour is equivalent to 60 minutes, then 0.1 hours is equivalent to 0.1*60 = 6 minutes.
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).