SOLUTION: Marie has three pieces of ribbon she wants to use to decorate a gift box.She measured the three pieces with a ruler and got 32.3cm, 41.19cm, and 57.8cm.She needs 200cm of ribbon fo

Algebra ->  Algebra  -> Decimal-numbers -> SOLUTION: Marie has three pieces of ribbon she wants to use to decorate a gift box.She measured the three pieces with a ruler and got 32.3cm, 41.19cm, and 57.8cm.She needs 200cm of ribbon fo      Log On

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Question 286559: Marie has three pieces of ribbon she wants to use to decorate a gift box.She measured the three pieces with a ruler and got 32.3cm, 41.19cm, and 57.8cm.She needs 200cm of ribbon for the box.How much is Marie over or under what she needs? Show work,
Found 2 solutions by nyc_function, richwmiller:
Answer by nyc_function(2733) About Me  (Show Source):
You can put this solution on YOUR website!
Let A = piece 1 is 32.3cm
Let B = piece 2 is 41.19cm
Let C = piece 3 is 57.8cm
The total needed is 200cm for the box.
If we add A + B + C, the total ribbons is 131.29cm.
How much is Marie over or under what she needs?
Marie is definitely under in terms of cm.
By how much is she under?
Subtract 131.29cm from 200cm and you shall have the answer.
Can you do it now?






Answer by richwmiller(9135) About Me  (Show Source):
You can put this solution on YOUR website!
Add them up and compare to 200.
just from an estimate 30+40+60=130 she is short about 70 cm