Hello
Please I need the answer of this question
Joan buys a CD at 25% off. Mary buys the same CD at full price. If Mary paid four dollars more than Joan, what is the regular price of the CD?
A. $12.00
B. $13.50
C. $14.00
D. $15.00
E. $16.00
2006-09-07 01:01:43 · 11 answers · asked by George Emeka 1 in Science & Mathematics ➔ Mathematics
The answer is E.
With this question all you have to do is guess and check. You multiply each posibility by 25% or 0.25 and whichever gives you an answer of 4 dollars is correct. In this case when I multiplied 16.00 by 25% I got an answer of 4 indicating the correct choice.
2006-09-07 01:07:12 · answer #1 · answered by myheartisanapple 2 · 0⤊ 0⤋
E $16
2006-09-07 05:07:20 · answer #2 · answered by Jacques Closeau 2 · 0⤊ 0⤋
16
2006-09-07 07:24:24 · answer #3 · answered by gina b 1 · 0⤊ 0⤋
$16
2006-09-07 01:05:31 · answer #4 · answered by Folded Paper Figures 2 · 0⤊ 0⤋
$16
2006-09-07 01:05:06 · answer #5 · answered by thenightwalker13 2 · 0⤊ 0⤋
Let's Joan paid x (let's not put any unit here)
Mary paid x+4, and this is also full price of the CD
So, 25% discounted price is, (x+4) * (75/100)
So, we get (x+4) * (75/100) = x
or, 3(x+4) = 4x
or, x = 12
So, regular price for the CD is $16
2006-09-07 01:10:06 · answer #6 · answered by M1976 2 · 0⤊ 0⤋
E - $16
2006-09-07 01:04:32 · answer #7 · answered by aka_bitsy 2 · 0⤊ 0⤋
$4 = 25% (since mary paid 4bucks more)
$4 X 100% / 25% = $16
2006-09-07 01:08:45 · answer #8 · answered by ash 7 5 · 0⤊ 0⤋
4 dollars more that z da 25% so its 16
2006-09-07 01:05:13 · answer #9 · answered by death lake 3 · 0⤊ 0⤋
y=.75x
x=y+4
x=.75x+4
.25x=4
x=16
E
2006-09-07 01:07:23 · answer #10 · answered by Anonymous · 0⤊ 0⤋