All categories

3 years ago

Solve the following equation for x 9x - 18 = 81

Mathematics

2 answers:

ludmilkaskok [199]3 years ago

7 0

Answer:

x=11

Step-by-step explanation:

9x−18=81

Step 1: Add 18 to both sides.

9x−18+18=81+18

9x=99

Step 2: Divide both sides by 9.

9x/9 = 99/9

Answer: x=11

Levart [38]3 years ago

4 0

Answer:

x= 11

Step-by-step explanation:

or, 9x-18=81

or, 9x=81+18

or, 9x=99

or, x=99/9

or, x=11

You might be interested in

Find the measure of each of the angles. Don’t forget to label your answer

user100 [1]

Answer:

$a=125^o$

$b=55^o$

$c=55^o$

$d=55^o$

$e=125^o$

$f=55^o$

Step-by-step explanation:

step 1

Find the value of x

we know that

$(2x+25)^o=(x+75)^o$ ----> by alternate interior angles

solve for x

Group terms

$2x-x=75-25$

$x=50$

step 2

Find the measure of angle a

we know that

$a=(x+75)^o$ ----> by vertical angles

substitute the value of x

$a=(50+75)=125^o$

step 3

Find the measure of angle b

we know that

$a+b=180^o$ ----> by supplementary angles (form a linear pair)

we have

$a=125^o$

substitute

$125^o+b=180^o$

$b=180^o-125^o=55^o$

step 4

Find the measure of angle c

we know that

$c=b$ ----> by vertical angles

we have

$b=55^o$

therefore

$c=55^o$

step 5

Find the measure of angle d

we know that

$d=b$ ----> by corresponding angles

we have

$b=55^o$

therefore

$d=55^o$

step 6

Find the measure of angle e

we know that

$e=a$ ----> by alternate exterior angles

we have

$a=125^o$

therefore

$e=125^o$

step 7

Find the measure of angle f

we know that

$f=d$ ----> by vertical angles

we have

$d=55^o$

therefore

$f=55^o$

4 0

3 years ago

This is math (the reason why i keep saying that is because im trying to say something with out it saying "add something in text

yarga [219]

Steven needs a total of 320 points to have a mean score of 80

Steven has 245 points so far

Steven needs to score at least 75 points on his last test to qualify for the team

5 0

4 years ago

Read 2 more answers

The common difference of the arithmetic sequence

oksian1 [2.3K]

Answer:

its 1/3

Step-by-step explanation:

please mark it as brainliest!!<3

5 0

3 years ago

Read 2 more answers

a climber starts descending from 504 feet above sea level and keeps going until she gets to 40 feet below sea level, how may fee

GenaCL600 [577]

Answer:

544 feet.

Step-by-step explanation:

|504| +|-40|=544

8 0

3 years ago

Can someone help me out with this?

Anton [14]

Answer:

.5? or 1/2

Step-by-step explanation:

i think its half, because the Y factors are going down by half.

i hope that kinda made sense.

5 0

3 years ago