About (estimate) how much can the dress cost if she wants to spend all her money?
a) $30
b) $29.50
c) $28
d) $20
2006-11-28 02:12:29 · 6 answers · asked by Tony R 1 in Science & Mathematics ➔ Mathematics
Emily has to find a dress whose cost is such that, when you add 5% of the cost, you get $30 total.
An easy way to get 5% of something is to move the decimal point one place to the left and then divide by 2.
(a) can't be the answer. The tax on $30 would make the total cost greater than $30.
5% of 29.50 = 2.95/2 = 1.475. Round this to 1.48, and the total tax makes the cost greater than $30. (b) can't be the answer.
5% of 28 is 2.80/2 = 1.40. The total cost of a $28 dress plus tax is $29.40.
Since choice (d) is less than choice (c), and choice (c) is the largest answer that works, choice (c) must be the answer.
Actually, the dress could cost a little more than $28, but that is the best answer of the choices given.
2006-11-28 02:46:35 · answer #1 · answered by hokiejthweatt 3 · 0⤊ 0⤋
a)$30 - If she wants to spend all of her money she needs to find a dress that costs $29.50 + tax.
2006-11-28 10:23:52 · answer #2 · answered by Shay 3 · 0⤊ 0⤋
it would be 28
2006-11-28 10:23:04 · answer #3 · answered by chevy_95_z71_14 1 · 0⤊ 1⤋
c) $28
She could spend 28.57 and still meet her $30 limit.
2006-11-28 11:29:20 · answer #4 · answered by ronnie j 2 · 0⤊ 0⤋
The answer would be C.
2006-11-28 10:40:32 · answer #5 · answered by rosey 7 · 0⤊ 0⤋
b) $29.5
2006-11-28 10:15:09 · answer #6 · answered by Mississippi State ROCKS! 1 · 0⤊ 1⤋