How to solve for x in this?

Answer:

56°

Step-by-step explanation:

1. the rule is: m(DCE)+m(DEC)+m(CDE)=180;

2. m(DCE)=180-(7x-2)=182-7x;

m(DEC)=180-(4x+33)=147-4x;

m(CDE)=180-(9x-31)=211-9x;

3. after the substitution all the angles (item 2) into the rule (item 1):

182-7x+147-4x+211-9x=180;

20x=360;

x=18;

4. if x=18, then filally, m(DCE)=182-7*18=56°.

f(3) = 7(3)+9

f(3) = 21+9

f(3) = 30

本题已由中国数学会官方解答（现有会员：3人）  

Answer:

Step-by-step explanation:

yea

Answer:-1

Step-by-step explanation: Just solve for x

Hope it helps you, be safe and tell me if im wrong pls! :D

Step-by-step explanation:

512 cubic inches

0.29630 cubic feet

0.010974 cubic yards

0.0083902 cubic meters

8,390.2 cubic centimeters

8.3902 liters

2.2165 gallons

34 percent of 100 is 34. 100 is close to 104 so the answer is around 34.

Answer:

Step-by-step explanation:

BP ^2 = AP*PC

AP = 5

PC = 8

BP^2 = 5 * 8

BP^2 = 40

Don't bother taking it down any further. We are going to need it as it is.

BP^2 + PC^2 = x^2

BP^ = 40

PC^2 = 8^2 = 64

40 + 64 = x^2

104 = x^2

sqrt(x^2) = sqrt(104)

x = 2 sqrt(26)  or

x = 10.198

Answer:

The original price was 10 dollars and 59 cents.

Step-by-step explanation:

I saw that it said 8.40 and 2.19. i made the 40 and 19 into 59. then i subtracted 59 and 19 to get forty. Next then i added 8 and two ans subtracted it. The put 8. and 40 together. $8.40

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The equivalent expression is ~

[tex]{3}^{\frac{2}{3}}[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

Let's solve ~

The Correct option is 1st one ~

C.) Same said interior angles

Answer:

1 mile = 1.6 kilometers

30 miles=x kilometers

30*1.6= 48 kilometers

48 * 3= 144 kilometers

Step-by-step explanation:

the car will drive 144 kilometers in 3 hours good luck

Answer:

neither

Step-by-step explanation:

you need to have 2 equations for it to be parallel/perpendicular

Answer:

neither

Step-by-step explanation:

parallel or perpendicular

thats just my answer :>>

Answer:in all the answer would be $82

Step-by-step explanation:9 + 20 + 8 + 45 = 82

According to the information given, it is found that:

C. [tex]H_0: p = 0.5[/tex], [tex]H_1: p > 0.5[/tex]

Fail to reject [tex]H_0[/tex], as there is not sufficient evidence to conclude that the probability that the home team wins is greater than one half.

At the null hypothesis, it is tested if home teams win half their games, that is, if the proportion is of 0.5, hence:

[tex]H_0: p = 0.5[/tex]

At the alternative hypothesis, it is tested if home teams win more than half their games, that is, if the proportion is of more than 0.5, hence:

[tex]H_1: p > 0.5[/tex]

The test statistic is given by:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

In which:

For this problem, the parameters are:

[tex]p = 0.5, n = 52, \overline{p} = \frac{32}{52} = 0.6154[/tex]

Hence, the value of the test statistic is:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

[tex]z = \frac{0.6154 - 0.5}{\sqrt{\frac{0.5(0.5)}{52}}}[/tex]

[tex]z = 1.66[/tex]

The test statistic is z = 1.66.

The p-value is the probability of finding a sample proportion above 0.6154, which is 1 subtracted by the p-value of z = 1.66.

1 - 0.9515 = 0.0485.

The p-value of the test is of 0.0485.

Since the p-value is greater than 0.01, the conclusion is:

Fail to reject [tex]H_0[/tex], as there is not sufficient evidence to conclude that the probability that the home team wins is greater than one half.

A similar problem is given at https://brainly.com/question/25600854

Answer:to find the coordinates of $P$ so that $AP$ to $PB$ is the given ratio, first look for the slope in rise over run form. Then, determine the ratio by thinking of it as dividing into segments.

Step-by-step explanation:

;)

Answer:

0.625

Step-by-step explanation:

but there's the answer how you ace your work that you are doing

Answer:

8

Step-by-step explanation:

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

Factors of 64: 1, 2, 4, 8, 16, 32, 64

They share 1, 2, 4, and 8. 8 is the greatest digit in this case therefore it's your final answer.

The required greatest common factor of 24 and 64 is 8.

The greatest common factor is defined as a group of the set of numbers that is the most considerable and greatest factor that all the numbers include.

Here,
Factors of the number 24 and 64 is given as

24 ⇒ 1, 2, 3, 4, 6, 8, 12, 24

64 ⇒ 1, 2, 4, 8, 16, 32, 64,

Pick the common factor,
= 1, 2, 4, 8,
Among the common factors, 8 is the greatest number,

Thus, the required greatest common factor of 24 and 64 is 8.

Learn more about greatest common factors here: https://brainly.com/question/11221202
#SPJ5

Answer:

y-y1/x-x1=0

y-5/x--1=0

y-5/x+1=0

cross multiplying

y-5=0(x+5)

equation=y-5

Step-by-step explanation:

as, the traingle is equilateral triangle Which means it's all sides are equal

therefore, VT and BT are x

→ BV = VT = BT = x

hope this answer helps you dear take care!

Answer:

8:100

Step-by-step explanation:

So if they sold 100 games, and 8 of those were board games then the ratio of board games to total number of games would be..

8:100

Answer:

6x+3y=-66

-6x-4y=-35

Step-by-step explanation:

Both of the equations have the same answer-

-66, and -35

Answer:

around $204.75

Step-by-step explanation:

Answer:

3x²y

Step-by-step explanation:

Answer:

3x²y

Step-by-step explanation:

2•3•x•x•x•y

2•2•3•x•x•y•y

3•5•x•x•x•y•y•y

common factor: 3•x•x•y

Answer:

triangle C

Step-by-step explanation:

the sides can be multiplied by 2 and be the same as the original triangle

So we know that the number x is multiplied by 2 and subtracted by 8 to get the total number of cookies that Gina baked. Lets set up this equation.  

48 = 2x - 8

The 2x is our x multiplied by 2 and the - 8 is the 8 less.  

Lets solve:  

48 = 2x - 8  

Add 8 to both sides to isolate the x variable:

48 + 8 = 2x - 8 + 8

56 = 2x    

Now we divide the 2 from the 2x in order to fully isolate the variable:  

56 = 2x  

28 = x

Lets plug 28 in to double check the answer:  

48 = 2(28) - 8  

48 = 56 - 8

48 = 48  

Yes!

I hope this helps! :)

1) 6x + 2 = 1x

____________

6x + 2 = 1x

6x + 2 = x

6x = x - 2

5x = -2

5x/5 = -2/5

x = - 2/5 ☑

Answer:

31 Pounds

Step-by-step explanation:

Let x = the number of lbs of Type A coffee.

We know that this month's blend used 4 times as many pounds of type B coffee as type A coffee.

Total lbs of coffee =  x + 4x

The total cost then is:

($ cost for Type A)(x) + ($ cost for Type B)(3x) = $700.60

$5.80x + $4.20(4x) = $700.60

$5.80x + $16.8x = $700.60

$22.6x = $700.60

x = 31 lbs

Therefore they where 31 pounds of type A coffee used.