90% as a fraction is 9/10
<u>Equation/Question:</u>
Sarah began the week with $2.60 in her lunch account. She deposited $20 on Monday, and then spent $4.75 each day that week for lunch. What was the balance in her lunch account at the end of the day on Friday?
<u>Answer/Way I did it:</u>
2.60+20.00 = 22.6
4.75 * 5 = 23.75 (There's obviously 5 school days)
22.60 - 23.75 = 1.15
(Simplify)
<u>I></u>-$1.15<u><I</u>
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<u>Done by NeighborhoodDealer</u>
Isolate the variable by dividing each side by factors x = 148/203