3 years ago

3x + y =11 and 6x + 3y = 24 solved by elimination

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

4 0

Y=2 x=3 double check is at bottom but cut off

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If the interior angle sum of a regular polygon is 5, 940 degrees, how many sides does it have?

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An apple, potato, and onion all taste the same if you eat them with your nose plugged

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2 years ago

One liter of paint covers 100 square feet. How many gallons of paint does it take to cover a room whose walls have an area of 80

mezya [45]

1 gallon is 3.78 L
100 sq feet needs 1 L
800 sq feet needs x

100/800 = 1/x
100x = 800
x = 800/100
x = 8 L

If you use the fact that 4 L = 1 gallon then you need 2 gallons of paint. I you use the more accurate 3.78 L then
1 gallon = 3.78 L
x gallon = 8 L

3.78 x = 8*1
x = 8/3.78
x = 2.12 gallons.

I guess you could say that 1 gallon and 1 L would do you.

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3 years ago

The sum of two positive integers, a and b, is at least 30. The difference of the two integers is at least 10. If b is th

Dafna11 [192]

Answer:

$a + b \geq 30$

$b - a \geq 10$

Step-by-step explanation:

Given

The sum of the two positive integer a and b is at least 30, this means the sum of the two positive integer is 30 or greater than 30, so we write the inequalities as below.

$a + b \geq 30$

The difference of the two integers is at least 10, if b is the greater integer then we subtract integer a from integer b, so we write the inequality as below.

$b - a \geq 10$

Therefore, the following system of inequalities could represent the values of two positive integers a and b.

$a + b \geq 30$

$b - a \geq 10$

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3 years ago

Write an equation in slope-intercept form of a line that has a slope of 1/2

andriy [413]

Answer: y=−12x+3.

Step-by-step explanation:

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3 years ago

The perimeter of a field is 120 yards. what is the length and width?

ElenaW [278]

120/4=30. Remember its widthxlength. if you forget ask your teacher or look online for more help. Good luck.

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3 years ago