Answer:
5 x 2/5
Step-by-step explanation:
5/1 x 2/5 =
10/5 =
= 2
58.5 sec - it reduces the amount of time on the escalator by 1.5 sec for every step he runs. Therefore 13(1.5) + 39 = 8(1.5) + 46.5
In the first question, is 4. Part of the question?
Difference is subtraction.
"The subtraction of 4 times a number (4x) and nine"
This means you subtract 4x by 9
4x - 9
Answer:
g = ±2h
Step-by-step explanation:
4g^2 -1= 16h^2 -1
Add 1 to each side
4g^2 -1+1= 16h^2 -1+1
4g^2 = 16h^2
Divide each side by 4
4/4g^2 = 16/4h^2
g^2 = 4 h^2
Take the square root of each side
sqrt(g^2) = ±sqrt(4h^2)
g = ±sqrt(4h^2)
g = ±2h