38 boys and 22 girls visit a zoo, 33 of these children have a voucher. Twice as many boys as girls do not have a voucher. Complete the frequency tree

Answer:9 girls and 18 boys don't have a voucherStep-by-step explanation:Data:boys = 38girls = 22Total = 60Children who have a voucher = 33Children who don't have a voucher = 60-33 = 27Twice as many boys as girls do not have a voucherGirls who don't have a voucher: xBoys who don't have a voucher: 2xgirls without voucher + boys without voucher: x + 2x = 273x = 27x = 27/3x = 9Girls who don't have a voucher: x=9Boys who don't have a voucher: 2x = 2(9) = 18For frequency tree:Total students: 60Boys : 38Boys who don't have a voucher : 18Boys who have a voucher: 20Girls: 22Girls who don't have a voucher: 9Girls who have a voucher: 13