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serious [3.7K]
3 years ago
8

Solve the system of equations by using a matrix. x - 5y = -5 -4x - 2y = 20

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

1. x = -5 + 5y

2. x = -5 - y/2

Step-by-step explanation:

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How much is the orange moon counted for?<br> How much is the green circle counted for?
Vlad [161]

Answer:

green= 3 each

orange moon= 5 each

Step-by-step explanation:

8 0
3 years ago
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the price of a pair of shoes increases from $50 to $64. What is the percent increase. Please Help, god bless
Vera_Pavlovna [14]

Answer:

Step 1: Calculate the change by subtracting old cost ($50) from the new cost ($64)

Step 2: Divide that change by the old cost ($50).  You will get a decimal number

Step 3: Convert the decimal number to a percentage by multiplying by 100%

Step-by-step explanation:

Try this first

3 0
3 years ago
Please see the photo. It's not 4 or 6.
Verdich [7]

Answer:

x = 9

Step-by-step explanation:

The product of the external part and the entire part of one secant is equal to the product of the external part and the entire part of the other secant, that is

5(x - 6 + 5) = 4(x - 3 + 4)

5(x - 1) = 4(x + 1) ← distribute parenthesis on both sides

5x - 5 = 4x + 4 ( subtract 4x from both sides )

x - 5 = 4 ( add 5 to both sides )

x = 9

4 0
3 years ago
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Help now pls bby pls
lions [1.4K]

Answer:

Cities around the country are changing. Faded boards, dull concrete, and old bricks are coming to life. Communities are are turning walls of their buildings, roads, and bridges into colorful murals. Painters might show local scenes, honor a hero or celebrate a culture. Murals can also be great projects for schools. They encourage teamwork, school spirit, and creativity. What would you paint? Your mural could inspire people to recycle, be a volunteer or cheer for a team.

Step-by-step explanation:

there are commas where they are supposed to be

6 0
3 years ago
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Pls help me quickly
Tcecarenko [31]
All real solutions

Everything cancels out once you multiply the top equation by two.
0 = 0 which means all real answers.
I hoping you meant question 3. Good luck!
3 0
3 years ago
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