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stiks02 [169]
3 years ago
9

The manager of a grocery store selected 100 customers at random to ask what the maximum price is

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
8 0
What is the rest of the question?
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Which statement is true about the product (9x2 – 4y2)(3x – 2y)?
nirvana33 [79]

Answer:

It's the last choice.

Step-by-step explanation:

1.  (3x - 2y)(3x -2y)

= 9x^2 - 12xy + 4y^2

The product is  (9x^2 - 4y^2) (9x^2 - 12xy + 4y^2)

which is neither a  difference of 2 squares  or perfect square trinomial.

2.  (3x - 2y)(3x + 2y)

= 9x^2 - 6xy + 6xy - 4y^2

= 9x^2 - 4y^2

and (9x^2 - 4y^2(9x^2 - 4y^2) is a perfect square.

6 0
3 years ago
Tiffany is 140 miles away from Maggie. They are traveling towards each other. If Maggie travels 5 mph faster than Tiffany and th
8090 [49]

Answer: Tiffany 15mph, Maggie 20mph

Step-by-step explanation:

Set up the equation 4((x+5) + x) = 140. x+5 represents how many miles Maggie covered in one hour. x represents how much Tiffany traveled in one hour. 140 is the number of miles in total. 4 is the number of hours in total.

Simplify the equation.

(x+5) + x = 35    Divide both sides by 4

2x+5 = 35         Combine like terms

2x = 30              Subtract 5 from both sides

x = 15                 Divide both sides by 2

Tiffany traveled 15mph, while Maggie traveled 15+5=20mph.

3 0
3 years ago
Can someone help me with this ASAP please I’m being timed !
sergij07 [2.7K]

i really cant see what it says sorry

7 0
3 years ago
Which value of x makes the open sentence true?
xeze [42]

Answer:

x=1/2 or 0.5

B. 0.5

Step-by-step explanation:

Step one: Add x to both sides

you then get the equation 7=4x+5

Step two: subtract 5 from both sides

you then get the equation 2=4x

Divide both sides by 4 to undo the multiplication.

2/4=4x/4x

you get x=2/4 which simplifies to 1/2.

7 0
3 years ago
Which equation represents the statement thirteen less then a number is forty two
Ludmilka [50]
X-13=42 
x is the "variable", you're taking 13 away from that, and the answer is also given, 42. 
3 0
3 years ago
Read 2 more answers
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