Answer: 36 miles per hour (mph)
We have 12 miles traveled in 1/3 of an hour
Multiply both values by 3 so that the "1/3 hr" becomes "1 hr"
12*3 = 36
(1/3)*3 = 1
So you travel 36 miles in one hour, ie your speed is 36 miles per hour.
You can use this ratio to help
12 miles : 1/3 hr
3*(12 miles) : 3*(1/3) hr
36 miles : 1 hr
Let the number of apples in a bag be x apples. Basically its assigning a letter (variable) to an unknown quantity.
The phrase in the question can be written as
2x / 19 where x is a variable. 2x means '2 times x'.
Both a) y=sin (x+ pi/2) and b) y=-cos(x-pi) has identical graphs.
The +- pi/2 shifts to the LEFT or RIGHT respectively. So the first plot is simply a cosine curve.
The second is a cosine shifted by pi, which gives -cos(x) but we have a negative out front so both (a) and (b) are cosine.
Answer:
φ = 1 + 1φ
Step-by-step explanation:
Source:
https://www.mathsisfun.com/numbers/golden-ratio.html