The school store sells pencils for $0.30 each,hats for $14.50 each,and binders for $3.20 each.Elena would like to buy 3 pencils, a hat, and 2 binders.She estimated that cost will be less than $20. Do you agree with her estimate?Explain your reasoning.
Estimate the number of pencils could she buy with $5.Explain or show your reasoning.
2 answers:
Answer:
Step-by-step explanation:
Yes, her estimate is not good because one hat is $14.50 and 2 binders are$3.20*2=^$6.40. Those two items combined is over $20. The pencils will put the total further over $20.
Pencils are $0.30 each. So 10 pencils will cost $3.
$5 - $3 = $2
The remaining $2 is enough for 6 more pencils.
So she could buy 10+6 = 16 pencils with $5.
Answer:
no n 16
Step-by-step explanation:
cost for 3 pencils, a hat, and 2 binders
= 3*0.3+14.5+2*3.2
= $21.8 > $20
so estimate not good
5/0.3=16.6....
so she can buy 16 pencils
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