Eight times the difference of 2 and a number

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

8 0

Answer: meh

Step-by-step explanation:

Rina8888 [55]3 years ago

6 0

8x-16=3x+9
5x=25
X=5
The number is x=5

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Solve the following equation by completing the square. x2-18x+78=0

densk [106]

The answer is 10.73 btw hope this helps

7 0

2 years ago

please explain the steps that are used to solve this??? Given:2(10 -13x)+9=-34x+60 Step 1:20-26x=-34x+60 Step 2:-26x=-34x+40 Ste

solmaris [256]

You left out the 9 in the whole equation. The 1st step you had right you just forgot to put +9. 2nd step you are combining the like terms and get 11-26x=-34x+40. Step 3: you are trying to isolate the x on one of the sides. You need to switch the 11 over to the 40 and get 29. Move -34x over to -26x and get 8x. Step 4 all you are doing in dividing 8 from both sides and get 5.

4 0

2 years ago

Please give me the correct answer. No mistakes. Thanks.

IceJOKER [234]

Answer:

Hello there, I think the answer you are looking for is 16.6

Step-by-step explanation:

I'm Katie, I hope this helps you. :] , have a great day.

6 0

2 years ago

Chase is building a birdhouse in the shape of a regular polygon. He knows that the measure of the interior angle is twice the me

mel-nik [20]

Answer:

The perimeter of the base of the birdhouse is 36 units

Step-by-step explanation:

<u><em>The complete question is</em></u>

Chase is building a birdhouse in the shape of a regular polygon. He knows that the measure of the interior angle is twice the measure of the exterior angle and the length of a diagonal that passes through the center is 12. What is the perimeter of the base of the birdhouse?

step 1

Find the measure of the interior angle

Let

x ---> the measure of the interior angle

y ---> the measure of the exterior angle

Remember that

the sum of the interior and exterior angle in any polygon is equal to 180 degrees

$x+y=180^o$ ----> equation A