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yuradex [85]
4 years ago
8

How can I solve systems of equations by substitution method

Mathematics
1 answer:
almond37 [142]4 years ago
5 0
This kind of hard to explain without an example, so I'll do my best...
All you have to do is isolate a variable on one side of the equals sign without a coefficient.  Ex:  x=2y+3  The x is all alone and ready to go into the second equation. 
Substitute into the second equation. Ex: 2x+5=3  Substitute: 2(2y+3)+5=3
I hope this helps! 

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A 3-gallon jug of juice costs $22.32. What is the price per pint?
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1 gallon = $7.44
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3 years ago
Simplify the following expression <br>9/20 + 5/12​
Artyom0805 [142]

<em>9/20+5/12=14/32/2 equals a over all 7/16</em>

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4 years ago
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John has finished compiling a list of the various members of the joint application development (JAD) group and the list is as fo
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Answer:

d.  His own

Step-by-step explanation:

John is the leader of the particular project team. He is in charge of delegating different tasks to his team members and also endure that everything is in order. He will also develop the necessary agenda and formulate the final report of the project. Therefore, the name that will be attached on the final tasks is his own.

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3 years ago
A lawyer commutes daily from his suburban home to his midtown office. The average time for a one-way trip is 24 minutes, with a
gogolik [260]

Answer:

Step-by-step explanation:

a) Probability-Above 30 min = 5.72% = .0572

b) Probability-Above 15 min =  99.11% = .9911

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7 0
3 years ago
Halla el área de un triángulo equilátero de 54 cm de perímetros
adoni [48]

Answer:

Area of equilateral triangle = 81√3 cm²

Step-by-step explanation:

Given:

Perimeter of an equilateral triangle = 54 cm

Find:

Area of equilateral triangle

Computation:

Perimeter of an equilateral triangle = 3 x Side

54 = 3 x Side

Side of equilateral triangle = 54 / 3

Side of equilateral triangle = 18 cm

Area of equilateral triangle = [√3/4]side²

Area of equilateral triangle = [√3/4][18]²

Area of equilateral triangle = [√3/4][324]

Area of equilateral triangle = [√3][81]

Area of equilateral triangle = 81√3 cm²

5 0
3 years ago
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