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3 years ago

Please help i dont understand this

Mathematics

1 answer:

zavuch27 [327]3 years ago

4 0

Answer:

It is the same-side interior angle of B which is the vertical angle of 100 (?)

Step-by-step explanation:

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2(n+5)=-2 <br><br> I need the steps

Eva8 [605]

Answer:

n = -6

Step-by-step explanation:

2 ( n + 5 ) = -2

First, solve the brackets.

2n + 10 = -2

Now take 10 to the right side.

2n + 10 -10 = -2 - 10

2n = -12

Then divide both sides by 2.

$\frac{2n}{2} =\frac{-12}{2}$

And now you'll the value of n.

n = ( -6 )

6 0

3 years ago

Geometry question. Please help :)

vladimir1956 [14]

The answer is AAS congruency.

∠1 = ∠4

∠B = D

AC = AC (common)

∴ ΔADC ≅ ΔABC by AAS congruency.

Hope this helps :)

4 0

3 years ago

Shane returned from a trip to Las Vegas with $420 , which was75% more money than he had at the beginning of the trip. How much m

ioda

Answer:

Shane had $240 at the beginning of his trip.

Step-by-step explanation:

Shane returned from a trip to Las Vegas with $420 and this is 75% more of at the beginning.

Let us assume the money he carried at the beginning of the trip was $x

At present he is having 75% more means total money he has = x+75% of x

This total amount is equal to $420

Therefore x + .75x = 420

x(1 +.75) =420

1.75 x = 420

Now by dividing both sides by 1.75

x = 420÷1.75

= $240

Therefore the amount he carried in the beginning of the trip is $240.

3 0

3 years ago

3 (x-3)=6 solve for x

svetlana [45]

Answer: x = 5

Step-by-step explanation:

3( x - 3 ) = 6

Divide 3 on both sides

x - 3 = 2

Add 3 on both sides

x = 5

3 0

3 years ago

If the area is 140 5/8 and the height is 11 1/4 what is the base for a parallelogram

rosijanka [135]

The area of a parallelogram is pretty straighforward, A = bh, base * height.

now, let's first off convert those mixed fractions to "improper", and then plug them in,

$\bf \stackrel{mixed}{140\frac{5}{8}}\implies \cfrac{140\cdot 8+5}{8}\implies \stackrel{improper}{\cfrac{1125}{8}}
\\\\\\
\stackrel{mixed}{11\frac{1}{4}}\implies \cfrac{11\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{45}{4}}\\\\
-------------------------------\\\\$

$\bf \textit{area of a parallelogram}\\\\
A=bh\qquad 
\begin{cases}
A=\frac{1125}{8}\\\\
h=\frac{45}{4}
\end{cases}\implies \cfrac{1125}{8}=b\left( \cfrac{45}{4} \right)\implies \cfrac{\quad\frac{1125}{8} \quad }{\frac{45}{4}}=b
\\\\\\
\cfrac{1125}{8}\cdot \cfrac{4}{45}=b\implies \cfrac{25}{2}\cdot \cfrac{1}{1}=b\implies \cfrac{25}{2}=b\implies 12\frac{1}{2}=b$

4 0

3 years ago