You can put this solution on YOUR website! This can be done a few ways. Since it's a small number, we'll do it the easiest way - estimation.
What is the maximum number of pens that can be bought for $28? 28/4 = 7
That's not enough items. What if we buy 6? 6*4 = 24. That leaves us 2 items short. 2*2 = 4. 24+4=28.
6 pens and 2 pencils
You can put this solution on YOUR website! Huana spent $28 on writing on writing utensils, pens cost $4 dollars and $2 pencils. She bought a total of 8. How many did she buy?
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P = # of pens
C = # of pencils
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P + C = 8
4P + 2C = 28