All categories

3 years ago

Find the value of X.

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

8 0

As you see this is a right angle, so the sum of the two angles = 90°

So,

(x + 42) + 3x = 90°

Remove the parentheses:

x + 42 + 3x = 90

Combine like terms:

4x + 42 = 90

Subtract 42 on both sides:

4x = 48

Divide 4 on both sides:

x = 12

~

You might be interested in

Please solve! And explanation!

Oksi-84 [34.3K]

A fraction is a way to describe a part of a whole. The value of x is 6.

<h3>What is a Fraction?</h3>

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.

The value of x can be written as,

$\dfrac{1}{1+\dfrac{1}{1+\dfrac{1}{x}}} = \dfrac{7}{13}\\\\\\\dfrac{1}{1+\dfrac{1}{\dfrac{x+1}{x}}} = \dfrac{7}{13}\\\\\\\dfrac{1}{1+\dfrac{x}{x+1}} = \dfrac{7}{13}\\\\\\\dfrac{1}{\dfrac{x+1+x}{x+1}}= \dfrac{7}{13}\\\\\\\dfrac{x+1}{x+1+x}= \dfrac{7}{13}\\\\$

13x + 13 = 7x + 7 + 7x

13x + 13 = 14x + 7

x = 6

Hence, the value of x is 6.

Learn more about Fraction:

brainly.com/question/1301963

#SPJ1

5 0

2 years ago

A camper attaches a rope from the top of her tent, 4 feet above the ground, to give it more support. If the rope is 8 feet long,

irina [24]

Using the Pythagorean theorem 4 would be the height and 8 would be the hypotenuse, you need to find the base

4^2 + X^2 = 8^2

16 x x^2 = 64

x^2 = 64-16
x^2 = 48

x = sqrt(48) = 6.92 feet ( round answer as needed )

6 0

3 years ago

Aditya installed solar panels for her house. When the solar panels produce more electricity than Aditya uses in a day, her net e

Sidana [21]

Answer:

True and false

Step-by-step explanation:

The highest net electricity= true

Net electricity used on july 2nd= false

3 0

3 years ago

A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. If electricity costs $0.20 per kilowatt hour, how much do

saveliy_v [14]

There is no such thing as a "kilowatt per hour". If that's actually what the question says, then it's a defective question, and you should put it away before it makes you any more confused. A 120 watt light bulb uses exactly 0.12 kilowatt when it's turned on. In one hour, it uses (0.12 kilowatt) x (1 hour) = 0.12 kilowatt-hour of energy. If energy costs $0.20 per kilowatt-hour, then the cost is (0.12) x (0.20) = 2.4 cents. (0.024 dollar)

8 0

3 years ago

A welder's electrical arc has a temperature ranging from 500°C to 20 000°C. What is this in degrees Fahrenheit?

DochEvi [55]

<h3>Answer:</h3>

932°F to 36032°F

<h3>Step-by-step explanation:</h3>

Celsius and Fahrenheit are both measures of temperature. However, Celsius is a metric measurement, and Fahrenheit is used in the USA primarily.

Conversion Formula

To convert the Celsius measurements to Fahrenheit we can use the formula:

(°C × 9/5) + 32 = °F

So, in this formula, you can plug in whatever Celsius value you have in and solve for Fahrenheit. To convert from F to C you can use the second formula:

(°F − 32) × 5/9 = °C

Solving for Fahrenheit

Now that we have the formula, we can plug in the 2 Celsius values to find the new range.

First, plug 500°C in

(500°C × 9/5) +32 = °F

Next, multiply the terms within the parentheses

(900) + 32 = °F

Finally, add the last terms

932 = °F

Then, plug in 20000°C

(20000°C × 9/5) + 32 = °F

Next, multiply the terms within the parentheses

(36000) + 32 = °F

Lastly, add the terms together

36032 = °F

This means that, in Fahrenheit, the temperature range of the welder's electrical arc is 932°F to 36032°F. This is a total range of 35100°F.

3 0

2 years ago