the ratio of pens to pencils is 5 to 6 . there are 8 more pencils than pens . how many pencils are there ?
"let x equal the number of pens , and y the number of pencils . then , x = 5 / 6 y . we also know that x = y - 8 . and so , we can substitute : y - 8 = 5 / 6 y so to isolate y , we get : 1 / 6 y = 8 and therefore : y = 48 answer : c"
add(multiply(8, 5), 8)