Question

for every 3 laps that Jackie swims, Ronnie swims 4 laps. During practice, they swam a combined total of 63 laps. how many laps did Ronnie swim during practice?

Answer 1

36 laps..!

Answer 2

Call the number of laps Jackie swims J and Ronnie R.

They swam a total of 63 laps:
J + R = 63

"for every 3 laps that Jackie swims, Ronnie swims 4 laps"
This one is a bit tougher to explain, but notice he swims 4/3 times as many laps as her
\[\large \frac{ 4}{3 }J = R\]

Answer 3

\[\large J + R = 63\] \[\large \frac{ 4}{3 }J = R\]
You can solve this using substitution.

Answer 4

let jackie swim 3x laps..and ronnie swin 4x laps ..
3x+4x=63
x=9
so ronnie swam 4x
that is 4 multiplied by 9 as 36 !