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xxMikexx [17]
2 years ago
9

I need help on this and a few more i have been busy lately

Mathematics
1 answer:
BaLLatris [955]2 years ago
8 0

Answer:

ok so we have to make it so we can get rid of one of the varibles by adding or subtracting

so lets multiply the first one by 4

120x+16y=4160

minus the second one so

108x=2160

divide by 108

x=20

then we just plug in

12(20)+16y=2000

240+16y=2000

-240

16y=1760

divide by 16

y=110

(20,110)

Hope This Helps!!!

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Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), when possible.
SCORPION-xisa [38]

The equation of the line in slope-intercept form would be y = m(x - 1/5) - 8.

<h3>What is slope intercept form a straight line?</h3>

The slope-intercept form of a straight line is used to get the equation of a line. We need to know the slope of the line and the intercept where the line crosses the y-axis in order to use the slope-intercept formula.

One of the most popular ways to represent a line's equation is in the slope-intercept form of a straight line. When the slope of the straight line and the y-intercept are known, the slope-intercept formula can be used to determine the equation of a line ( the y-coordinate of the point where the line intersects the y-axis). The equation of a line is the equation that each point on the line fulfills.

Since the slope is undefined in the given question, let us consider it as m.

Therefore, slope=m

Given points are 1/5 and -8, so x₁ = 1/5 and y₁ = -8

We know the formula is, y - y₁ = slope × (x - x₁)

Putting the values of x₁, y₁ and slope in the given formula we get,

y -(-8) = m × (x-1/5)

y = m(x-1/5) - 8

Hence, we get the required equation.

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8 0
1 year ago
-13 - 3x = -10<br> Please solve for X
Thepotemich [5.8K]

-13 - 3x = -10

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7 0
3 years ago
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What value of x makes the equation true?
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Answer:

x=5

Step-by-step explanation:

x=5

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If a = 4, b = 6 and C = -3, Find the values <br> of <br> 3ac<br> ____<br> B²-C²
madreJ [45]

The value of the expression 3ac - b² - c² is -61.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The expression will be solved as below:-

3ac - b² - c² =  ( 3 x 4 x -3 ) - ( 4 )² - ( -3 )²

                    =   ( -36 - 16 - 9 )

                    =   ( -61 )

Therefore, the value of the expression 3ac - b² - c² is -61.

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7 0
1 year ago
How would you Evaluate. 5⋅4 ^0
solniwko [45]
It is understood that 5.4^0 is the  number 5.4 raised to the power zero.

There is a rule for this: any number raised to the power zero is 1.

So, 5.4 ^ 0 = 1.

You can show that any number raised to the power of zero is 1 using this:

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Given that the numerator and the numerator of that fraction are equals the result is 1.
7 0
3 years ago
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