3 years ago

Isolate x in 4x+4y=12

Mathematics

1 answer:

e-lub [12.9K]3 years ago

6 0

4x+4y=12
(-4y) (-4y)
4x= 12-4y
Divide 4
12-4y/4= x
I really hope it makes sense

You might be interested in

What is the area of this trapezoid?

kolezko [41]

Answer:

are of trapezoid =1/2×height(a+b)

Step-by-step explanation:

A=1/2×8(10+20)

=4×30

=120cm*

5 0

3 years ago

2. Suppose (220)_b and (251)_b are the squares of consecutive integers. Determine b.

Andrei [34K]

Let $x$ and $x+1$ be these consecutive integers. For some base $b$ , we can write

$(x_{10})^2=220_b=2b^2+2b$

$((x+1)_{10})^2=251_b=2b^2+5b+1$

$x^2=2b^2+2b$

then

$x^2+1=2b^2+2b+1$

Now,

$x^2+2x+1=2b^2+5b+1$

$2x+2b^2+2b+1=2b^2+5b+1$

$\implies2x=3b$

Squaring both sides gives

$4x^2=9b^2$

and so

$4(2b^2+2b)=9b^2$

$\implies8b^2+8b=9b^2$

$\implies b^2-8b=0\implies\boxed{b=8}$

(because the base has to be non-zero)

3 0

3 years ago

Please help its from the lines and angles chapter

Murrr4er [49]

This is the answer of this question

4 0

3 years ago

2) Rosa is making a board game that is 16 inches by 24 inches. She wants to use square tiles. What

solniwko [45]

Answer:

8x8

GCF

Step-by-step explanation:

3 0

3 years ago

(URGENT) Will give 25 points

Studentka2010 [4]

Volume = 2 x 6 x 1 + 1 x 2 x 2
Volume = 16 cubic feet

Shipping Cost = 20 + 1 x 6 = $26

5 0

2 years ago

Read 2 more answers