Amhed pays $2.10 for 5 1/4 lbs of bananas. Janel pays 3.25 for 6 1/2 lbs of bananas. Which is a better buy? Explain why.

Mathematics

2 answers:

Doss [256]3 years ago

5 0

Amhed has the better buy because he pays $0.40 for a pound of bananas while Janel pays $0.50 for a pound.

Snezhnost [94]3 years ago

3 0

Ahmed has the better buy, with $0.40 per pound. Janelle pays $0.10 more, at $0.50 per pound. IYou can read my work if you need it.

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QveST [7]

Let
<span>A (3, 1)
B (0, 4)
C(3, 7)
D (6, 4)

step 1
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step 2
find the distance CD
d=√[(y2-y1)²+(x2-x1)²]------> dCD=√[(4-7)²+(6-3)²]-----> dCD=√18 cm

step 3
find the distance AD
d=√[(y2-y1)²+(x2-x1)²]------> dAD=√[(4-1)²+(6-3)²]-----> dAD=√18 cm

step 4
find the distance BC
d=√[(y2-y1)²+(x2-x1)²]------> dBC=√[(7-4)²+(3-0)²]-----> dBC=√18 cm

step 5
find slope AB and CD
m=(y2-y1)/(x2-x1)
mAB=-1
mCD=-1
AB and CD are parallel and AB=CD

step 6
find slope AD and BC
m=(y2-y1)/(x2-x1)
mAD=1
mBC=1
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and
AB and AD are perpendicular
BC and CD are perpendicular

therefore
the shape is a square wit length side √18 cm

area of a square=b²
b is the length side of a square
area of a square=(√18)²------> 18 cm²

the answer is
18 cm²

see the attached figure

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