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forsale [732]
2 years ago
9

Evaluate 7x + 3y when x = 2 and y = 4​

Mathematics
2 answers:
Lady_Fox [76]2 years ago
6 0

Answer:

..............=7(2)+3(4)

=14+12=26.................

Liono4ka [1.6K]2 years ago
6 0
<h2>Step-by-step explanation:</h2><h2><em>=</em><em>></em><em> </em><em>7</em><em>x</em><em>+</em><em>3</em><em>y</em></h2><h2><em>=</em><em>></em><em> </em><em>7</em><em>(</em><em>2</em><em>)</em><em>+</em><em>3</em><em>(</em><em>4</em><em>)</em></h2><h2><em>=</em><em>></em><em> </em><em>1</em><em>4</em><em> </em><em>+</em><em>1</em><em>2</em></h2><h2><em>=</em><em>></em><em> </em><em>2</em><em>6</em></h2>
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Given that the two triangles are similar, solve for x if AU = 20x + 108, UB = 273, BC = 703, UV = 444, AV = 372 and AC = 589. Yo
Arlecino [84]

If two triangles are similar then the corresponding sides are in proportion. Thus,

AB / AU = BC / UV = AC / AV

AB / (20x+108) = 703 / 444

Where AB is equivalent to:

AB = AU + UB

AB = 20x + 108 + 273

AB = 20x + 381

Therefore going back to the first equation:

(20x + 381) / (20x + 108) = 703/444

444 (20x + 381) = 703 (20x + 108)

8880x + 169164 = 14060x + 75924

14060x - 8880x = 169164 – 75924

5180 x = 93240

x = 93240 / 5180

<span>x = 18</span>

4 0
3 years ago
The total number of adults and students with Library cards in 27814. Of that total 11480 are student
UNO [17]
16334 is the remaining amount

6 0
3 years ago
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Lines k and n are perpendicular. If the slope of line k is -6, what is the slope of line n?
CaHeK987 [17]

Lines k and n are perpendicular

The slope of line k is -6

Fact: The product of slopes of two perpendicular lines = -1

So the slope of line n = -1 ÷ -6 = 1/6

The correct choice is 'D.'

8 0
3 years ago
Is -14/3 greater than -4
ser-zykov [4K]

Answer:

greater then

Step-by-step explanation:

4 0
2 years ago
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Y= 1/2x+ 2 to make the x the subject.
timofeeve [1]

Answer:

x=2y-4

Step-by-step explanation:

y=\frac{1}{2} x+2

"To make x the subject" means to have the equation with all the terms in x on one side. As of now, y is the subject of the equation.

You start by subtracting 2 from both sides, you should get the following.

y-2=\frac{1}{2} x

Then you multiply by 2 from both sides, you should end up with the following.

2(y-2)=x

Therefore, you get the following.

x=2(y-2)

Finally, you distribute and get the answer.

x=2y-4

5 0
2 years ago
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