All categories

3 years ago

Find the solution -x + 2y = 6 and y = 1/2 x + 3

Mathematics

1 answer:

Margaret [11]3 years ago

5 0

Answer:

Step-by-step explanation:

-x + 2y = 6

y = 1/2x + 3

sub 1/2x + 3 in for y, back into the first equation

-x + 2(1/2x + 3) = 6 ....distribute thru the parenthesis

-x + x + 6 = 6

6 = 6

The solution to this equation is infinite solutions

You might be interested in

Help.this is very good hard

Mademuasel [1]

It is x>/0.2 so easy, just divide both sides by 0.3

7 0

3 years ago

Read 2 more answers

12351 rounded to the nearest hundred explain how you rounded

Nataly_w [17]

$\bf 12,\underline{351}\impliedby \textit{3 hundreds, and 51 units, let's round that}
\\\\\\
\begin{array}{llll}
300----- 50-----400\\
\qquad \qquad \uparrow\qquad \qquad \qquad \uparrow \\

\begin{array}{llll}
anything\ here\\
rounds\ up\ to\\
300
\end{array}\quad
\begin{array}{llll}
anything\ here\\
rounds\ up\ to\\
400
\end{array}
\end{array}
\\\\\\
\textit{therefore, the hundreds value of 300, the 51 tips it over to 400}
\\\\\\
12,\underline{400}$

3 0

3 years ago

Read 2 more answers

15 points Please help!<br> What is the product? 4n/4n-4*n-1/n+1

jeka57 [31]

N/n+1
n-1/n-1=1
result is n/n+1

5 0

3 years ago

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a buliding. The angle of ele

Marysya12 [62]

$\tan( \alpha ) \: = \: \frac{h}{b}$
$\alpha \: = \: {22}^{0}$
$h \: = \: 450 \: ft$
Therefore,
$b \: = \: h \cot( \alpha )$
$b \: = \: 450 \: ft \: \times \: \cot( {22}^{0} )$
b = 450 ft × 2.47508685
b = 1,113.78908 ft
or,
b ≈ 1,114 ft.

6 0

2 years ago

A cube with a cylindrical hole cut out of the middle is shown. The edge length of the cube is 36 feet, and the circle on the fro

Vaselesa [24]

46204 ft³

<h3> <u>Explanation</u>:</h3>

Volume of <u>cube</u>: length³ ⇒ 36³ ⇒ 46656 ft³

Volume of <u>cylinder</u>: πr²h ⇒ π(2)²(36) ⇒ 144π ⇒ 452.39 ft³

Volume of the figure: 46656 - 452.15 = 46203.61 ft³ ≈ 46204 ft³

4 0

2 years ago

Read 2 more answers