the 112 4{th} -grade students at Edgemont School donate pennies to raise 75 dollar for a local charity. What is the minimum number of pennies each student needs to bring if they want to meet their goal of collecting 75 dollar? (1 dollar = 100 pennies)
the 112 4{th} -grade students at Edgemont School donate pennies to raise 75 dollar for a local charity. What is the minimum number of pennies each stu
By Sarah
Đáp án:each student minimum 7 pennies
Giải thích các bước giải:
a sutdent needs to bring=75*100/1124=6,67.. pennies
so a student min number 7 pennies
We have
$75\$ = 75 \times 100 = 7500$ (penny)
Divide 7500 for 112 we have
$7500 :112 = 66$ with the residue is 108
Then each students have to bring at least 67 pennies to meet their goal.