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Elena-2011 [213]
3 years ago
15

Help me please! Thanks

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0
Hope this helps! have a nice day/night

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Given that f(X)=2X-5, find the value of X that makes f(X)=15
amid [387]
X=15 because 2(15) is 30-5 is 15
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3 years ago
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A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of
marusya05 [52]
Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
                             = 12 - 4 feet
                             = 8 feet
Then
Perimeter of the yard = 2 (length + width)
                                   = 2(12 + 8)
                                   = 2 * 20 feet
                                   = 40 feet.
So the perimeter of the yard  is 40 feet.
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3 years ago
Jake needs to buy 120beverages for a party. What equation, in standard form, determines the number x of 8-packs of juice and the
kaheart [24]

8x+12y=120

8 packs -> x value

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-------------------------------

total amt. of beverages is 120

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Mm 7 You have a part-time job that pays $4.75/hr with tips averaging $4.50/hr. Your deductions are FICA (7.65%), federal tax wit
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Answer:

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Step-by-step explanation:

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I hope this helps.
5 0
3 years ago
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