有題數學唔識(中一)，幫幫手，唔該。－ppi93gk88d的部落格

標題:

有題數學唔識(中一)，幫幫手，唔該。

發問:

1.Calvan is the chairman of Social Services Group. thegroup intends to treat some senior citizens to visiting the Tsing Ma Bridge and the new airport .For this activity, the Social Services Group pays $510 to hire a coach and $12 for food and drinks for each participant. Eight group members have signed up for the... 顯示更多 1.Calvan is the chairman of Social Services Group. thegroup intends to treat some senior citizens to visiting the Tsing Ma Bridge and the new airport .For this activity, the Social Services Group pays $510 to hire a coach and $12 for food and drinks for each participant. Eight group members have signed up for the activity .if the total expenditure for the activity must be less than $1150, find the greatest number of senior citizens that can be invited.

最佳解答:

the fixed expenditure for the activity is 510, so you have to deduct 510 first 1150- 510 = 640 the expenditure for food and drinks for each participant 640/12 = 53.33333----------- that means the food and drinks is only enough for 53 people so the greatest senior citizens that can be invited are 53

其他解答:

(1150-510)/12=53.3... the greatest number of senior citizens that can be invited is 53.