proportion math work question 4

Algebra
Tutor: None Selected Time limit: 1 Day

Should an estimate or the exact answer be calculated? Then do the appropriate calculation. 

 

Mr. Montgomery received a $20 gift card for a coffee shop. He made three purchase of $1.65 each and two more purchases of $3.95 each. How much money was then left on his card?

 
 A.
An estimate is sufficient. There is about $6.00 left on the card.
 
 B.
The exact answer is needed. There is $7.15 left on the card.
Apr 15th, 2015

B.       Exact answer can be calculated.  Here is how.

His total purchases =. 3 x 1.65 + 2 x 3.95 = 12.85

Money left = 20 -12.85.  = $ 7.15

Apr 15th, 2015

I have answered your question.

Niru

Apr 15th, 2015

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