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Serga [27]
2 years ago
10

A paper company needs to ship paper to a large printing business. The paper will be

Mathematics
1 answer:
Kryger [21]2 years ago
5 0

Answer:

x = 8

y = 11

Step-by-step explanation:

Total small box weight  = 50x    [x being the number of small boxes]

Total large box weight = 80y     [y being the number of large boxes]      

Total boxes = x+y = 19

Total weight = 1280

<em>Determine x and y.</em>

<u>You know 2 equations. One for weight and another for number of boxes each.</u>

  • 1280 = 50x +80y
  • x+y = 19

<u>Rewrite second equation:</u>

x+y=19

y=19-x

<u>You have to plug in one into another.</u>

1280 = 50x + 80(19-x)

<u>Solve for x</u>

1280 = 50x + 1520 - 80x

-240 = -30x

x = 8

<u>Solve for y by plugging in x into one of the equations:</u>

8+y = 19

y = 11

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Answer:

x=7

Step-by-step explanation:

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Answer:

Area of Pool cover: 110.25π

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Step-by-step explanation:

To find the area of a circle the formula is πr^2.

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If ur teacher wants you to use 3.14 as pi then these are your answers:

Area of Pool cover: 346.185, round up to 346.19 if needed

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3 years ago
Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s
Snezhnost [94]

Answer. First option: t > 6.25


Solution:

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h < 104

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Multiplying the inequality by -1:

(-1)(-16t^2 < -625)

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16t^2/16 > 625/16

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Replacing t^2 by [ Absolute value (t) ]^2:

[ Absolute value (t) ]^2 > 39.0625

Square root both sides of the inequality:

sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

Absolute value (t) > 6.25

t < -6.25 or t > 6.25, but t can not be negative, then the solution is:

t > 6.25



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16-25

Step-by-step explanation:

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