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Olegator [25]
3 years ago
15

Please Answer ASAP, Thx! 5x -2y=17 and 4x - 3y= 8

Mathematics
1 answer:
iVinArrow [24]3 years ago
5 0

5x - 2y = 17

4x - 3y = 8

Try to change one of the equations to isolate a variable, so you can use the new equation and substitute it into the other equation.

5x - 2y = 17

-2y = 17 - 5x

y = -17/2 + 5/2x

Now plug this into the second equation

4x - 3(-17/2 + 5/2x) = 8

4x + 51/2 - 15/2x = 8

8/2x - 15/2x = 16/2 - 51/2

-7/2x = -35/2

x = 5

Plug this into either equation to find y

4x - 3y = 8

4(5) - 3y = 8

20 - 3y = 8

-3y = -12

y = 4


x = 5, y = 4

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Step-by-step explanation:

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3 years ago
4.6w - 3 + 6.4x - 1.9y <br> What are the terms and coefficients?
Soloha48 [4]

For the algebraic expression 4.6w - 3 + 6.4x - 1.9y, the terms are 4.6w, - 3, 6.4x, and - 1.9y, and the coefficients are 4.6, 6.4, and -1.9 respectively.

Given: To find terms and coefficients in 4.6w - 3 + 6.4x - 1.9y

What are algebraic expressions?

Algebraic expressions are sequences or combinations of characters containing letters, numbers, variables, symbols, operands, etc.

They help in making a big problem short and to make a relationship between different parts of the problem.

What are the terms?

In algebraic expressions, terms are individual components involved in forming the algebraic expression except for the operators.

What are coefficients?

In algebraic expressions, coefficients are the numbers of letters that are associated with the variables.

Let's solve the given problem:

Given algebraic expression: 4.6w - 3 + 6.4x - 1.9y

Therefore the terms in the algebraic expression are: 4.6w, - 3, 6.4x, and - 1.9y

and the coefficients are: 4.6, 6.4, and -1.9 as w, x, and y are the variables or unknowns of the given algebraic expression.

Hence for the algebraic expression 4.6w - 3 + 6.4x - 1.9y, the terms are 4.6w, - 3, 6.4x, and - 1.9y, and the coefficients are 4.6, 6.4, and -1.9 respectively.

Know more about "terms and coefficients" here: brainly.com/question/13867708

#SPJ9

8 0
1 year ago
What is the y-intercept of the function,represented by the table of values below?
Hitman42 [59]

Answer:

8

Step-by-step explanation:

So the y-intercept is not given by your table because there is no x that is listed as 0.

But don't fret; we can still find it.

Let's see if the function is linear by seeing if we have the same slope per two points in the table.

For the first pair ( the points (-2,16) and (1,4) ), x increased by 3 and the y decreased by 12 so the slope there is -12/3=-4.

Now looking at the next pair ( the points (1,4) and (2,0) ), x increased by 1 while y decreased by 4 so the slope is -4/1=-4.

So the function appears to be linear.

So the slope-intercept form of a line is y=mx+b where m is slope and b is y-intercept.

We already found the slope from earlier which is m=-4.

So the equation so far is y=-4x+b.

Now to find b, the y-intercept, we need to use a point (x,y) on the line along with y=-4x+b.

Let's see my favorite on the list of points is (2,0).

y=-4x+b with (x,y)=(2,0)

0=-4(2)+b

0=-8+b

8=b

So the y-intercept is 8.

8 0
3 years ago
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LekaFEV [45]

Answer:

I think it 168 square units

Step-by-step explanation:

hope it helps

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The answer is 14 because you just have to pick a number to work with so it is 14.
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