shiannrobinson shiannrobinson

13-03-2017
Mathematics

contestada

Shannon sells handmade wallets for $12 each.

Yesterday, she sold n wallets. Today, she sold 3 fewer wallets than yesterday.

Over the past two days, she earned a total of $396.

Drag and drop terms and an operation to create an equation that models the situation. Then, solve for n, the number of wallets Shannon sold yesterday.

Respuesta :

apologiabiology apologiabiology

13-03-2017

she sold n yesterday
today she sold n-3

ok, so
12(n+n-3)=396
12(2n-3)=396
divide both sides by 12
2n-3=33
add 3 to both sides
2n=36
divide both sides by 2
n=18

sold 18 wallets yesterday

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