All categories

2 years ago

What is the value of x? Enter your answer in the box. x =

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

7 0

Answer:

x = 23

Step-by-step explanation:

3x + 50 = 6x - 19 (Vertically Opposite Angles)

=> 6x - 19 = 3x + 50

=> 6x - 3x = 50 + 19

=> 3x = 69

=> x = 69/3

=> x = 23

You might be interested in

6 times a number is 72 what is the number?

LuckyWell [14K]

Answer:

Step-by-step explanation:

72 divided by 6 equals 12

7 0

2 years ago

Read 2 more answers

This couch is $100.12 and I had $1,000 how much money do I have now

Zanzabum

1,000-100.12=899.88

you have $899.88

hope this helped

7 0

3 years ago

Rewrite ^3 sqrt 27x-81-5 to make it easy to graph a translation. Describe the graph.

iragen [17]

First we have to rewrite this function.Instead of :^3 sqrt (...) we can write : (...)^(1/3).
f ( x ) = ( 27 x - 81 ) ^(1/3) - 5 = ( 27 * ( x - 3 ) ) ^(1/3) - 5 = = 3 * ( x - 3 )^(1/3) - 5 And this makes it easy to graph a translation.The parent function is y = x^(1/3). The zero of this function is ( 0, 0 ).
Then it will be stretched vertically by a factor of 2 and translated: 3 units right and 5 units down.

8 0

3 years ago

What is 578 rounded to the nerist 100?

Maslowich

600,<span>We round the number up to the nearest hundred if the last two digits in the number are 50 or above.</span>

8 0

3 years ago

If it takes 6 hours for a plane to travel 720km with a tail wind and 8 hours to make the return trip with a head wind. Find the

denis-greek [22]

The speed of wind and plane are 105 kmph and 15 kmph respectively.

<u>Solution:</u>

Given, it takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind.

We have to find the air speed of the plane and speed of the wind.

Now, let the speed wind be "a" and speed of aeroplane be "b"

And, we know that, distance = speed x time.

$\text { Now, at tail wind } \rightarrow 720=(a+b) \times 6 \rightarrow a+b=\frac{720}{6} \rightarrow a+b=120 \rightarrow(1)$

Now at head wind → $720=(a-b) \times 8 \rightarrow a-b=\frac{720}{8} \rightarrow a-b=90 \rightarrow(2)$

So, solve (1) and (2) by addition

2a = 210

a = 105

substitute a value in (1) ⇒ 105 + b = 120

⇒ b = 120 – 105 ⇒ b = 15.

Here, relative speed of plane during tail wind is 120 kmph and during head wind is 90 kmph.

Hence, speed of wind and plane are 105 kmph and 15 kmph respectively.

6 0

3 years ago