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Kipish [7]
3 years ago
9

Y= -5x +10 y= -2x-2 solve by substituions

Mathematics
1 answer:
Veronika [31]3 years ago
4 0

Answer:

x = 4, y = -10

Step-by-step explanation:

if both expressions equal 'y' then you can solve by setting them equal to each other:

-5x + 10 = -2x - 2

-3x + 10 = -2

-3x = -12

x = 4

find 'y':

y = -5(4)+10

y = -20 + 10

y = -10

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Answer:

6 3/8 inches (6.375 inches)

Step-by-step explanation:

For simplicity we'll assume that both the photo and the poster board are square.  To determine the width of the border, subtract 8.5 inches from the poster board width 21.25 inches, obtaining 12.75 inches, and then divide that 12.75 inches by 2:  6.375 inches (6 3/8 inches).  

Set the photo 6 3/8 inches from each edge of the poster board.

6 0
3 years ago
what is the length of the diagonal of a non-regulation tennis court with length 20 feet and width 15 feet?
Semmy [17]

Answer:

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Step-by-step explanation:

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H² = A² + B²

H² = 20² + 15² = 400 + 225 = 625

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6 0
3 years ago
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Answer:

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6 0
3 years ago
Each pair of figures below is similar. Find the lengths of all unknown sides​
lions [1.4K]

Answer:

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Step-by-step explanation:

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b) Dimensions on the smaller figure are ER/E'R' = 9/15 = 3/5 times those on the larger figure.

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3 years ago
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