Allison bought 3 books and 19 cent stamps and two boxes of envelopes that cost $1.89 per box . If a book of stamps contains 20 stamps, how much did Allison pay for her entire purchase ?

Question

Allison  bought 3 books and 19 cent stamps and two boxes of envelopes  that cost $1.89 per box . If a book of stamps contains  20 stamps, how much did Allison pay for her entire  purchase ?

anonymous · Answer

@UsukiDoll can u help?

usukidoll · Answer

I could try... 

given
3 books bought
20 stamps at 19 cents
2 boxes of envelopes at 1.89 
hmmm we need to solve for the price of the books... we don't know that . :/

anonymous · Answer

Yeah we don't know the cost of the  books

usukidoll · Answer

that book could be related to the stamps?!  or it could be just plain textbooks

mathstudent55 · Answer

@Halia Can you please check the problem. Is the wording exactly correct?
Being off by just a small word can change a lot.

anonymous · Answer

Kk I'll do @mathstudent55

mathstudent55 · Answer

A book means a book of stamps, and we are told each book of stamps has 20 stamps.

usukidoll · Answer

but I understand the envelopes part
2 x 1.89 = 3.78 total for envelopes... 

yeah I knew I got that term confused.

mathstudent55 · Answer

"Allison bought 3 books and 19 cent stamps"
                                     ^
                                     is it "and" or another word here?

usukidoll · Answer

she bought 3 book of stamps
1 book of stamps - 20 stamps
3 books of stamps - 60 stamps at 19 cents a piece

usukidoll · Answer

60 x .19 = $11.40

usukidoll · Answer

oh nooooooooooo. XD! does the book of stamps contain .19 cent stamps.. XD! nugh not my day

anonymous · Answer

Allison bought 3 books of 19-cent stamps and two boxes of envelopes that cost  $1.89 per box. If a book of stamps contains  20 stamps, how much did allison pay for the entire purchase ? 

The answer choices are:
$4.35
$13.29
$7.58
$15.18

usukidoll · Answer

oh thank gawd.
$11.40+$3.78 = ?

mathstudent55 · Answer

Much better.

mathstudent55 · Answer

Stamps: 3 * 20 * $0.19 = $11.40
Envelopes: 2 * $1.89 = $3.78
Total = $11.40 + $3.78

usukidoll · Answer

1 book of stamps ->20
2 book of stamps ->40
3 book of stamps ->60

60 stamps @ 19 cents a piece => 60 x .19 = $11.40

$1.89 x 2 = $3.78

$11.40+$3.78 = ?
calculate the total  using addition

anonymous · Answer

$15.18

usukidoll · Answer

yes

mathstudent55 · Answer

Correct.

anonymous · Answer

Kk so that's our final  answer ?

mathstudent55 · Answer

yes

anonymous · Answer

Thanks again  I appreciate  it @mathstudents55 and @UsukiDoll :)