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leonid [27]
3 years ago
9

What is the solution to the equation -2(1+5a)=-6(a+3) ?

Mathematics
1 answer:
Lilit [14]3 years ago
7 0


The solution is a=4

-2(1+5a)=-6(a+3)

-2-10a=-6a-18

+18              +18

16-10a=-6a

     +10a      +10a

16=4a

divide by 4

4=a


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SIMILAR TRIANGLES<br> Solve for x.
patriot [66]

Answer:

<h2>x = 9 1/3</h2>

Step-by-step explanation:

To do this, we need to do a few things. I'll put the steps separate so you can easily understand.

<h3>Step 1: Set up a proportion</h3>

\frac{14}{6} = \frac{x}{4}

<h3>Step 2: Cross multiply</h3>

6x = 14 x 4

6x = 56

6x = 9 1/3

<h3>Step 3: Check</h3>

\frac{14}{6} = \frac{6}{9\frac{1}{3} }

Cross multiply to check if they equal

6 x 9 1/3 = 14 x 4

56 = 56 ✔

<h3>Step 4: Answer</h3>

x = 9 1/3

I'm always happy to help :)

7 0
3 years ago
How do you write the problem fifteen more than twice a number is eight more than three times the number?
Evgen [1.6K]
we call n - the number 

2×n + 15 = 3×n + 8


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5 0
3 years ago
How much would you pay for a $20 shirt that is 18% off?
dybincka [34]
You would pay $16.4. you would do: 20 times .18 which equals $3.6 off. 20-3.6= $16.4.
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Read 2 more answers
In the figure given below CP=x+3, PA=3x+19, CQ=x and QB=3x+4 then, what value of x will make PQ || AB?
zhenek [66]

Given that

PQ || AB

CP = x+3

PA = 3x+19

DC = x+3

CA = x

QB = 3x+4

We know that

By Basic Proportionality Theorem,

CP / PA = CQ / QB

On substituting these values in the above formula

⇛ (3x+19) / (x+3) = (3x+4) / x

On applying cross multiplication then

⇛ x(3x+19) = (3x+4)(x+3)

⇛ 3x²+19x = 3x(x+3)+4(x+3)

⇛ 3x²+19x = 3x²+9x+4x+12

⇛ 3x²+19x = 3x²+13x+12

⇛ 3x²+19x-3x²-13x = 12

⇛ (3x²-3x²)+(19x-13x) = 12

⇛ 0+6x = 12

⇛ 6x = 12

⇛ x = 12/6

⇛ x = 2

∴ , x = 2

<u>Answer:</u> The value of x for the given problem is 2

<em>Additional</em><em> comment</em><em>:</em>

<u>Basic Proportionality Theorem</u>

" A line drawn parallel to the one side of a triangle intersecting other two sides at two different points, then the line divides the other two sides in the same ratio".

<u>also</u><u> read</u><u> similar</u><u> questions</u><u>:</u> In the given figure QR ∥AB, RP∥ BD,CQ=x+2,QA=x,CP=5x+4,PD=3x.The value of x is..

brainly.com/question/18679712?referrer

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Urgent please… Correct answer will get Brainliest !
rewona [7]

Answer:

B .red ball hit a red ball.

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