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2 years ago

Solve for y 4.2x - 1.4y = 2.1

Mathematics

2 answers:

NeX [460]2 years ago

3 0

4.2x - 1.4y = 2.1
-1.4y = -4.2x + 2.1
y = (-4.2/-1.4)x + 2.1/-1.4
y = 3x - 1.5 <==

Dima020 [189]2 years ago

3 0

<h2>Answer:</h2>

The value of y is:

$y=3x-1.5$

<h2>Step-by-step explanation:</h2>

We are given a equation in terms of variable x and y as follows:

$4.2x-1.4y=2.1$

Now, we are asked to solve for y i.e. we are asked to find the value of y in terms of x and constant.

Now, we subtract 4.2x on both the sides of the equation to obtain:

$-1.4y=2.1-4.2x$

On dividing both side of the equation by (-1.4) we get:

$y=\dfrac{2.1}{-1.4}-\dfrac{4.2x}{-1.4}\\\\y=-1.5+3x\\\\i.e.\\\\y=3x-1.5$

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Which are correct representation of the inequality minus 32X -5 less than 52 minus X select two options

Murljashka [212]

Answer:

The value of X is more than equal to -1.83.

Step-by-step explanation:

We need to find the correct representation of the inequality 'minus 32X -5 less than 52 minus X'

LHS of the inequality will be : -32x-5

RHS of the inequality will be : (52-X)

So,

$-32X-5\leq 52-X$

Adding X both sides

$-32X-5+X\leq 52-X+X\\\\-31X-5\leq 52$

Adding 5 to both sides,

$-31X-5+5\leq 52+5\\\\-31X\leq 57$

Dividing both sides by -31.

$X\geq \dfrac{-57}{31}\\\\X\geq -1.83$

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2 years ago

How many different triangles can be constructed with three sides, each measuring 5 centimeters?

Akimi4 [234]

The first thing we will do is define an equilateral triangle:
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Every equilateral triangle consists of three equal sides and three congruent angles.
Therefore, there can be a triangle with three equal sides (5 centimeters in this case).
Answer:
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3 years ago

•Please help, due tomorrow• Answer choices are given

Luda [366]

Answer:

Hii i just know the 4 and 5 one

Step-by-step explanation:

4 one is exterior

5 one is included angle

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2 years ago

What equals 39 by multiplying 10 ?

qwelly [4]

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hope it helped

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9 months ago