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3 years ago

If it doesn't give me the perimeter, how do i find x from this? thank you!

Mathematics

1 answer:

Mariulka [41]3 years ago

6 0

The way the angles are labeled tell you that they are all congruent. The two triangles you see here also share the side that joins them. Then by the angle-side-angle postulate, the two triangles are congruent, so x + 23 = 13, or x = -10.

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Select the equation that most accurately depicts the word problem. One-half of a certain number is 95. - n = 95 + n = 95 • n = 9

Dahasolnce [82]

Answer:

$n * \frac{1}{2} = 95$

Step-by-step explanation:

Required:

Select the equation that most accurately depicts the word problem

One-half of a certain number is 95.

Take the certain number to be n.

This statement in equation form will be: $n * \frac{1}{2} = 95$

Therefore, the equation that most accurately depicts the word problem is $n * \frac{1}{2} = 95$

Although your options are incomplete, but this answer is correct.

The * symbol can be replaced with a dot sign

4 0

3 years ago

Justin recently drove to visit his parents who live 96 miles away. On his way there his average speed was 20 miles per hour fast

never [62]

Answer:

Justin's average speed to his parents' house: x= 40mph

Justin's average speed from his parents' house: x+20=60 mph

Step-by-step explanation:

Let the average speed be x +20

Then average speed from his parents' x

And the distance is S=96

Then we know :

$\displaystyle \frac{S}{x+20} +\frac{S}{x} =4 \\\\\\ \frac{96}{x+20} +\frac{96}{x}=4 \ |\div 4 \\\\\\ 24\bigg(\frac{1}{x+20} +\frac{1}{x} \bigg) =1 \\\\\\ 24\cdot \frac{x+x+20}{(x+20)x} =1 \ |\cdot (x+20)x \ \ \\\\\\48x+480=x^2+20x \\\\ x^2-28x-480=0 \\\\ \rm D=28^2+4\cdot 480=2704 =52^2 \\\\ \boxed{x_1=\frac{28+52}{2} =40} \\\\x_2=\frac{28-52}{2} =-12 \ \ \varnothing$

Justin's average speed to his parents' house: x= 40mph

Justin's average speed from his parents' house: x+20=60 mph

4 0

3 years ago

What do you mean by measurement<br>

DochEvi [55]

Answer:

tor maytafahsjsjbshwgdhxhxhqjx

4 0

3 years ago

Read 2 more answers

240,000 rounded to the nearest hundred thousand is

In-s [12.5K]

<em>ANSWER: </em>

So, the hundred thousand is the "2" in this situation. Since 5 or more rounds up, and 4 or down stays, we stay with the 2. Therefore, the answer is 200,000

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3 years ago

Edgardo has a drink cooler that holds 10 gallons of water. He is filling the cooler with a 1 quart container. How many times wil

yawa3891 [41]

40 times there are 4quarts in each gallon so 4 times 10 gallons

5 0

3 years ago

Read 2 more answers

If it doesn't give me the perimeter, how do i find x from this? thank you!​

If it doesn't give me the perimeter, how do i find x from this? thank you!