Answer:
y/x = R
Step-by-step explanation:
The two quantities x and y are proportional means they have a relation.
The equation is;
y= Rx ------to find the proportional R you make R the subject of the formula;
y/ x = R
He can read 
chapters of his history book in 1 hour.
<em><u>Explanation</u></em>
Franco read 3/8 of a chapter of his history book in 1/5 of an hour.
Suppose, he can read 
chapters of his book in 1 hour at this rate.
So, the equation according to the <u>ratio of 'the chapter to the time'</u> will be....
So, he can read chapters of his history book in 1 hour.
Answer:
i think its 14 if the number starts all the way at -10 youd have to add 14 to get to four
12 meters a second so the answer is D
X - the cost of one night´s lodging
y - the cost of a meal
3 x + 6 y = 132
3 x + 2 y = 109 / * (-1)
-----------------------------
3 x + 6 y = 132
-3 x - 2 y = - 109
-----------------------
4 y = 23
y = 5.75
3 x + 34.50 = 132
3 x = 97.50
x = 97.50 : 3
x = $32.50
The cost of one night´s lodging is $32.50.
