Question

roberta is thinking about joining co-op store if she pays $10.00 to join she will get 10% off on all the groceries she buys there how much must she buy before her savings equal her membership fee

Answer 1

let x me the amount she buys,
she gets 10% off. equating this 10 % with the membership fee
10 = x(.1)

=> x = 10/.1 = 100/1 = 100

so she must by atleast 100 dollars worth groceries to balance her membership fee !

Answer 2

@ganeshie8 yup. it's 100 .... thanks

Answer 3

np yw :)