school
Acemy

Linear Equations in One Variable

SAT Math· difficulty 3/5

A class has 30 students. Boys outnumber girls by 4. How many girls?

  • A

    13

    check_circle
  • B

    17

  • C

    15

  • D

    11

Explanation

b+g=30b + g = 30, b−g=4b - g = 4 → 2g=262g = 26 → g=13g = 13.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode