Question

Eight students got a B for the final test.If the ratio of the students that got A to the students who got B is y:x how many students got a A?Write a formula to give the number of students who got A, if x or y is given

Answer 1

Answer:

Number of students who got grade A = $\frac{8y}{x}$

Step-by-step explanation:

Number of students who got grade B = 8

Ratio of the students that got A to the students who got B = $y:x$

That is

Number of students who got grade A : Number of students who got grade B =  

$y:x$

Number of students who got grade A : 8 = $y:x$

Therefore,

Number of students who got grade A = $\frac{8y}{x}$