Donna redeems a 10% off coupon at he local nursery. She buys some stuff and her checkout price before tax is $217.95. How much would she have paid without the coupon?

I NEED TO SET UP AN EQUATION USING ONE VARIABLE.

Question

Donna redeems a 10% off coupon at he local nursery. She buys some stuff and her checkout price  before tax is $217.95. How much would she have paid without the coupon?

I NEED TO SET UP AN EQUATION USING ONE VARIABLE.

anonymous · Answer

with the coupon she got 10% off.  so she paid 90% of the price. you want to know 
90% of what number is $217.95
to make an equation replace 
"90%" by .9
"of" by times 
"what number" by a variable, i choose x
"is" by = 
217.95 stays the same and write 
$$.9\times x = 217.95$$

anonymous · Answer

x=196.56

anonymous · Answer

solve in one step via 
$$x=217.95\div.9$$ then if you have patience divide or else use a calculator