Question

A grocer bought a box of soap containing 72 bars for $49.00. Some of the soap he sold at 3 bars for $2.50, and the rest $0.70 a bar. This gave a profit of $7.80. How many bars did he sell?

Answer 1

Anybody wanna help pleas???

Answer 2

i'll try =^_^=

Answer 3

hold on..

Answer 4

Thanks :D

Answer 5

$2.5 = 48 bars
$0.7 = 24 bars

Answer 6

Thanks :D

Answer 7

happy to help! =^_^=

Answer 8

it is not ..

Answer 9

Yes it is

Answer 10

sure pat?

Answer 11

why?

Answer 12

yeah, i got that also. sorry.

Answer 13

haha..

Answer 14

^_^

Answer 15

Let x = number sold at 3 / $2.50
72 - x = number sold at $.70

2.50 / 3x + 2.10 (72- x = 49.00 + 7.80

2.50x + 151.20 - 2.10x = 170.40
.4x = 19.20
x = 48

48 \[\div\] 3 = 16

2.50 x 16 = 40

.70 x 24 = 16.80

40.00 + 16.80 = 56.80

56.80 - 49.00 = 7.80

Answer 16

Let x=number sold at 0.7
72-x=number sold at 0.25
2.5(72-x)/3 + 0.7x=56.8
180-2.5x+2.1x=170.4
-0.4x=-9.6
x=24

72-x=72-24=48