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Triss [41]
3 years ago
8

? 6) 7x2 - 7x someone tell me the answerrrr

Mathematics
1 answer:
yarga [219]3 years ago
7 0

Answer:

7x(x−1)

Step-by-step explanation:

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Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of
olasank [31]

Answer:

12 bikes

9 tricycles

Step-by-step explanation:

x+y=21

2x+3y=51

x=-y+21

2(-y+21)+3y=51

-2y+42+3y=51

y+42=51

y=9

x=12

5 0
3 years ago
How to set the answer up
Korolek [52]

Let s and g represents the numbers of suits and gowns produced.

The number of zippers used is 2s+g.

The number of buttons used is 5s+8g.

In order to use all of the available zippers and buttons, we must have ...

  • 2s + g = 171
  • 5s + 8g = 576

Cramer's rule tells you the solution to the system

  • ax +by = c
  • dx +ey = f

Is given by

  • x = (bf-ey)/(bd-ea)
  • y = (cd-fa)/(bd-ea)

Using this rule on the equations for zippers and buttons, we have

... s = (1·576 -8·171)/(1·5 -8·2) = -792/-11 = 72

... g = (171·5 -2·576)/-11 = -297/-11 = 27

72 suits and 27 gowns can be made from available zippers and buttons.

3 0
3 years ago
1 Harry Potter but cost $20. To purchase the whole set of seven books it would take 6 times as much. How much would it cost to b
svlad2 [7]

Answer:

$120

Step-by-step explanation:


7 0
3 years ago
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Simplify.<br>Enter your answer, in simplest form, (in the boxes).
zepelin [54]

Answer:

1/4

Step-by-step explanation:


5 0
3 years ago
Which of these items will help you determine if you can afford a particular house?
Setler79 [48]
The Answer Is B: Monthly Budget. A Monthly Budget Can Help Because If You Use A Specific Amount Of Money In One Category, And A Specific Amount In Another, And So On, You Will Know How Much Money You Need To Use To Buy A House. You Can Also Take A Little Bit Of Money Out Of Each Category.
             ~Spades15
6 0
3 years ago
Read 2 more answers
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