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lozanna [386]
2 years ago
7

plz explain to me step by step how I can solve for x and y using the system of equations (basically elimination)

Mathematics
1 answer:
IrinaVladis [17]2 years ago
3 0
You've already completed the first step by lining up terms with the same variables. Like addition, simply add them together column by column. x+(-x) equals 0 so it is cancelled out. 4y plus 6y is 10y. 9+11=20. We are left with 10y equals 20, so y equals 2. Then plug in the y value into either equation. I will use the first so x +4(2)=9. x must equal 1. Double check by plugging in both x and y into the second equation.
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A wallet sized picturer measures 1/6 and 1/4 what is the area
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Answer:

A = 1/24

Step-by-step explanation:

Area is the length times the width

A = l*w

The length is 1/6 and width is 1/4

A = 1/6*1/4

A = 1/24

7 0
3 years ago
How many cubic feet of water can a 18 inch by 19 inch by 36 inch aquarium hold?
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3 years ago
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Kids - 40 ticketsadults - 50 tickets
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3 years ago
Arrange the following number in descending order 0,9; 0,009; 0,09; <br>0,0009 ;9,09​
VLD [36.1K]

Answer:

9.09 , 0.9 , 0.09 , 0.009 , 0.0009

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Hope this helped you! :)

8 0
2 years ago
Car A has an initial value of 30,000 and depreciates at a rate of 20% per year. Car B has an initial value of 20,000 and depreci
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Answer:

The value of Car B will become greater than the value of car A during the fifth year.

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Note: See the attached excel file for calculation of beginning and ending values of Cars A and B.

In the attached excel file, the following are used:

Annual Depreciation expense of Car A = Initial value of Car A * Depreciates rate of Car A = 30,000 * 20% = 6,000

Annual Depreciation expense of Car B from Year 1 to Year 6 = Initial value of Car B * Depreciates rate of Car B = 20,000 * 15% = 3,000

Annual Depreciation expense of Car B in Year 7 =  Beginning value of Car B in Year 7 = 2,000

Conclusion

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Download xlsx
4 0
3 years ago
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