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posledela
3 years ago
10

Someone please help me with this asap

Mathematics
1 answer:
Leokris [45]3 years ago
5 0

Answer:

All of these terms are dollar amounts.

Step-by-step explanation:

Here, x + y = 10 (where these numerals represent counts)

(1/2)x + (1/4)y = 4 (where (1/2), (1/4) and 4 are dollar amounts)

Let's eliminate y.  To accomplish this, mult. the 2nd eq'n by-4, obtaining

-2x - y = -16, and then combining this with the 1st equation, as follows:

-2x - y = -16

  x + y = 10

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

 -x  = -6, or x = 6.  This represents the number of pens purchased by Terrance.  

Subbing 6 for x in the first equation, we get y = 4.  This represents the number of pencils he bought.

($0.50)x + ($0.25)y = $4.00 (dollar amounts)

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Answer:

<h2>B. x² + 3x - 5</h2>

Step-by-step explanation:

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3 years ago
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Pring 2022
lutik1710 [3]

Answer:

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Step-by-step explanation:

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<u />

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2 years ago
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Please help me
Kruka [31]

y = x^2 -4x

x = -1

y = (-1)^2 - 4×-1=1+4 = 5

x= 0

y = (0)^2 - 4×0 = 0

x = 1

y = 1^2 -4×1 = 1-4 = -3

x = 2

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y = 3^2 - 4×3 = 9-12 = -3

x = 4

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now 2nd equation

y = 2x^2 + x

x = -2

y = 2 (-2)^2 + (-2)= 8-2 = 6

x = -1

y = 2 (-1)^2+(-1)= 2-1 = 1

x = 0

y = 2(0)^2 +0 = 0

x = 1

y = 2 (1)^2 + 1 = 3

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6 0
3 years ago
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alukav5142 [94]

Answer:

FOIL:  9x^2 +30xy + 25y^2

(3x + 5y)(3x+5y)

F: 3x*3x

O: 3x*5y

I: 5y*3x

L: 5y*5y

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Step-by-step explanation:

4 0
3 years ago
HURRYYYWhat is the value of the expression (5)3?
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5x6=25x5=125 (125) I think it’s correct
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