3 years ago

You can buy 3 sandwiches for $4.95 or 4 sandwiches for $6.72. Which is the better buy?

2 answers:

8 0

<span>3 sandwiches for $4.95 is the better buy, because 3 for $4.95 = $1.65 per sandwich, while 4 for $6.72 = $1.68 per sandwich</span>

Diano4ka-milaya [45]3 years ago

6 0

By 4 its a penny cheaper than buying 3

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andrew-mc [135]

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3 years ago

Which expression represents 87 less than the product of 12 and 15

ivanzaharov [21]

Answer:

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2 years ago

Please help me on this thank you

fomenos

A' = (1/2)*A = (8, 0)
B' = (1/2)*B = (12, 6)
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The third choice is appropriate.

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3 years ago

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Aleksandr [31]

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2 years ago

Base of triangle exceeds the height by 4. If the area is 178.5 square inches, find the length of the base and the height of the

xxMikexx [17]

Area of a triangle:
A= (1/2)(bh)

In this problem we are given:
A= 178.5 $in^{2}$
b= h+4 in
h= UNKNOWN ("h")

Plug in our values into the area equation and solve for "h":
$A= \frac{1}{2} bh$
$178.5 = \frac{1}{2} ((h+4)h)$ (multiply each side by 2 to get rid of the 1/2)
$357 = ((h+4)h)$
$357 = h^{2} +4h$
$0= h^{2} +4h -357$
(357/21=17)
$0= (h+21)(h-17)$ (solve both inequalities separately)

$0= (h+21)$
$-21= h$ ( a negative height is not possible so, this answer is incorrect.)

$0=(h-17)$
$h=17 in$

Answer: base = (h+4)= (17+ 4) b= 21 in h= 17in

Please comment with any further questions! :)

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3 years ago