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3 years ago

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The track team needs new uniforms. The students plan to sell plush toy tigers (the school mascot) for $5 each. The students find

three companies online that sell stuffed mascots. Company A sells 12 tigers for $33.24. Company B sells 16 tigers for $44.80. Company C charges $41.10 for 15 tigers. Which company has the best buy?

1 answer:

sasho [114]3 years ago

8 0

Answer:

Company C

Step-by-step explanation:

Company A sells 12 tigers for $33.24.

Cost per tiger = $33.34 / 12

= $2.78

Company B sells 16 tigers for $44.80. Company

Cost per tiger = $44.80 / 16

= $2.8

C charges $41.10 for 15 tigers.

Cost per tiger = $41.10 / 15

= $2.74

The company that has the best buy is company C that charges $2.74 per tiger

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Talja [164]

1. $x^2 - 14x + 45$

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Since the numbers must multiply to a positive number, 45, they must both be positive or both be negative. Since they must add to -14, they must both be negative.

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The numbers are -9 and -5.

$x^2 - 14x + 45 = (x - 9)(x - 5)$

2. $x^2 - 15x + 36$

<span>You need two numbers that multiply to 36 and add to -15.
Since the numbers must multiply to a positive number, 36, they must both be positive or both be negative. Since they must add to -15, they must both be negative.

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</span>
<span>You need two numbers that multiply to -44 and add to -7.
Since the numbers must multiply to a negative number, -44, one number is positive, and one number is negative.

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The numbers are -11 and 4.

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$(x - 10)(x - 5) = 0$

$x - 10 = 0$    or   $x - 5 = 0$

$x = 10$    or   $x = 5$

2. $x^2 = -2x + 15$

$x^2 + 2x - 15 = 0$

$(x - 3)(x + 5) = 0$

$x - 3 = 0$    or   $x + 5 = 0$

$x = 3$    or   $x + 5 = 0$

$x = 3$    or   $x = -5$
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