Answer:
see explanation
Explanation:
sum the parts of the ratio , 2 + 4 + 7 = 13 parts
divide the amount by 13 to find the value of one part of the ratio.
$520 ÷ 13 = $40 ← value of 1 part of ratio , then
2 parts = 2 × $40 = $80
4 parts = 4 × $40 = $160
7 parts = 7 × $40 = $280
Each student receives $80 , $160 , $280