I recently went to the shop and purchased 4 items.

Three of the items cost:

$1.50
$3.00
$4.00

There was quite a long queue, and as I was quite bored, I was playing with my pocket calculator whilst waiting.

Very curiously, the 4 prices added to the same number as I got when I multiplied the 4 prices together.

What was the price of the 4th item?

Question

I recently went to the shop and purchased 4 items.

Three of the items cost:

$1.50
$3.00
$4.00

There was quite a long queue, and as I was quite bored, I was playing with my pocket calculator whilst waiting.

Very curiously, the 4 prices added to the same number as I got when I multiplied the 4 prices together.

What was the price of the 4th item?

igreen · Answer

1.50 + 3.00 + 4.00 = 8.5
1.50 * 3.00 * 4.00 = 18

anonymous · Answer

.

anonymous · Answer

A

igreen · Answer

We can write an equation:

1.50 + 3.00 + 4.00 + x = 1.50 * 3.00 * 4.00 * x

Simplify:

8.5 + x = 18x

Now subtract 'x' to both sides, what's 18x - x? @Cicilybailey14

igreen · Answer

@Noland_DeWitte Don't give answers.

anonymous · Answer

k

igreen · Answer

http://openstudy.com/code-of-conduct

igreen · Answer

Can you subtract 18x - x? @Cicilybailey14

cicilybailey14 · Answer

I got the answer @iGreen  Thanks :)

igreen · Answer

Oh, what did you get?