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Semmy [17]
3 years ago
7

Solve the following system using the elimination method. 3x+2y=1 2x-y=10

Mathematics
1 answer:
Nataliya [291]3 years ago
6 0

Answer:

Step 1 : Multiple both sides by 2

3x + 2y = 1

4x - 2y = 20

Step 2 : Eliminate 1 variable by adding the equations

7x = 21

Step 3 : Divide both sides by 7 to solve for x

x = 3

Step 4: Substitute the value of x into 3x + 2y = 1

3(3) + 2y = 1

Step 5: Solve for y

2y = 1 - 9

2y = -8

*divide by 2

y = - 4

Solution:

(x,y) = (3, -4)

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<u>Given</u>:

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The area of the base of the triangle can be determined using the Heron's formula.

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Substituting a = 8, b = 15 and c = 17. Thus, we have;

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Using Heron's formula, we have;

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The volume of the right triangular prism can be determined using the formula,

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