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3 years ago

Solve the system by substitution y = 6x -24 y = -2x

Mathematics

2 answers:

Katen [24]3 years ago

8 0

Answer: x = 3, y = -6

Step-by-step explanation:

Substitute the y into the equation to get -2x=6x-24

8x=24 so x = 3. Then plug x=3 into the second equation to get y = -6

kap26 [50]3 years ago

4 0

Plug second equation into first
-2x = 6x - 24
Subtract 6x from both sides
-8x = -24, x = 3
Plug 3 for x in second equation
y = -2(3), y = -6
Final answer: x = 3, y = -6

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nadya68 [22]

Answer:

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Step-by-step explanation:

Scalene because each side has a different length

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6 0

3 years ago

The perimeter of an isosceles trapezoid is 28 in and the ratio of lengths of its bases is 5:3. Find the lengths of the sides of

Natalka [10]

The measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches

Let x = length of base and leg

The formula for perimeter of isosceles trapezoid is P = b₁ + b₂ + 2(leg)
Where: b = base

   P = b₁ + b₂ + 2(leg)
   28 = 3x + 5x + 2(x)
   28 = 8x + 2x
28/10 = 10x/10
2.8 = x

Now, substitute the values:
     P = b₁ + b₂ + 2(leg)
   28 = 3(2.8) + 5(2.8) + 2(2.8)
28 = 8.4 + 14 + 5.6
28 = 28

Hence the measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches

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3 years ago

750.683 the value of 8?

Romashka-Z-Leto [24]

8 is in the tens place. It has a value of 80.

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3 years ago

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IF A:B =2:3 AND B:C=6:7 THEN WHAT'S A:B:C?

saw5 [17]

Step-by-step explanation:

A:B:C

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4 years ago

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olga nikolaevna [1]

Step-by-step explanation:

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3 years ago