-4(2x-7)=12 give the value of x. Enter your value for x and your explanation or steps used to solve for x

Answer:

b=8

Step-by-step explanation:

15 +b=23

get b by itself by subtracting 15 on both sides

b=8

the answer is

 =  8

you need to Subtract  15  from both sides of the equation

+ 15 = 23 + 15 − 15 = 23 − 15

simplify

and then you get your answer

Answer:

Follows are the solution to this question:

Step-by-step explanation:

formula for perimeter of semicircle:

[tex]C= \pi \times d[/tex]

Area of Semicircle:

[tex]A= \frac{\pi r^2}{2}[/tex]

For question 5:

[tex]\to d=17 \ m[/tex]

[tex]\to C= \pi \times d= 3.14 \times 17= 53.38 =53 \\\\[/tex]

[tex]\to A= \frac{\pi \times r^2}{2}= \frac{3.14 \times 8.5^2}{2}=\frac{226.865}{2}=113.4325= 113[/tex]

For question 6:

[tex]\to d=10.5 \ in[/tex]

[tex]\to C= \pi \times d= 3.14 \times 10.5= 32.97 =33[/tex]

[tex]\to A= \frac{\pi \times r^2}{2}= \frac{3.14 \times 5.25^2}{2}=\frac{86.54625}{2}=43.273125= 43[/tex]

Answer:

150 pages

Step-by-step explanation:

3/10 is equal to 0.3, or 30% of the book. We can set up an equation to find the total number of pages in the book, with x representing the number of pages.

0.3x=45

0.3x/0.3=45/0.3

x=150

Answer:

f=7/5x+27/5

Step-by-step explanation:

you just have to divide both sides by -5

Answer:

18

Step-by-step explanation:

-22-7(-5)-5

-22+45-5

-22+40

18

Answer:

90%

Step-by-step explanation:

Answer:

90%.

Step-by-step explanation:

50 is half of 100. 45 is half of 90.

So, 45 is 90% of 50.

Answer: -2

Step-by-step explanation:

Subtract 13 on both sides

-7x = 14

Divide by -7 on both sides

x = -2

Answer:

i am so sorry i dont get the question

Step-by-step explanation:

Answer:

n-5

Step-by-step explanation:

..................

Answer:

The second one. 5 - n

Step-by-step explanation:

5 - n because it says a number decreased by five which means n is subtracted by five

Answer:

x= -2

Step-by-step explanation:

:D

Answer: x = -5

Step-by-step explanation:

Answer: yes you are correct 2 /1/2 is greater

Step-by-step explanation:

Answer:

y=70x+20

Step-by-step explanation:

Okay so the slope is determined by having two points on the line in this case one of them is (0,20) and (2,160), you're going 140 up and 2 over so the slope would be [tex]\frac{140}{2}[/tex] which equals 70 so thats how you get m, to get b you simply put the y interecept which is at 20.

Plugs those numbers together you get y=70x+20 which is intercept form.

Answer:

18

Step-by-step explanation:

Answer: 18, 21, 24, 27, 30

Step-by-step explanation:

Answer:

together they are 124.5 milligrams

Step-by-step explanation:

together they are 124 + 0.5 = 124.5 milligrams

Answer:

9

Step-by-step explanation:

18-5=13

Answer:

Any integer greater than 8.

Step-by-step explanation:

2x - 5 > 11

⇒ 2x > 16

⇒ x > 8

Step-by-step explanation:

c.

Answer:

3 or [tex]\frac{3}{1}[/tex]

Step-by-step explanation:

rise over run, up 3 over 1.

hope this helps, good luck :)

rise over run

[tex]\frac{3}{1}[/tex] or 3

Answer:

6,383 =

 6,000  

+ 300  

+ 80  

+ 3  

Step-by-step explanation:

hope this helps :) have a great day !!

Answer: All you have to do is since one batch needs 1 1/3 cup of walnuts multiply 1 1/3 to 3 3/4 = 3 1/4 cups

Step-by-step explanation:

Answer:

x ≈ 18.7

Step-by-step explanation:

This is a big equation, so let's break it down a bit.

[tex]\frac{3}{2} \sqrt[4]{(2(x-6) ^3 )} +4=16[/tex]

Let's start by isolating the radical which is x.

So subtract 4 from both sides :

[tex]\frac{3}{2} \sqrt[4]{(2(x-6) ^3)}[/tex][tex]=12[/tex]

Now multiply both sides by 2 to get rid of the fraction :

[tex]3\sqrt[4]{(2(x-6)^3)} = 24[/tex]

Now divide both sides by 3 to get rid of the number out of the poly root :

[tex]\sqrt[4]{2(x-6) ^3}[/tex][tex]=8[/tex]

Now take both sides of the equation to the power of 4 :

[tex]2x^3 - 36x^2+216x-432=4096[/tex]

And lastly, solve :

[tex]x = 18.69920[/tex] which is rounded up to [tex]x[/tex] ≈ [tex]18.7[/tex]

Answer:

8*1+5*2+3*1*2*3

8+10+18

36 is the answer

Answer:

there is many answers .

Step-by-step explanation:

first work out 13 × 23 × 234 . then think of a smaller number . 69966 > ____ place a smaller number

Answer:

It is given that Tawanna is asked to find the GCF of each term in the expression 2ab+8b.

Firstly she should find the factors of each term in the expression as :

2ab=1,2,a and b

8b=1,2,4,8 and b

Now, GCF is the greatest common factor, since the GCF of the above terms is 1,2 and b, thus she should use each common factor once.

She wrote the common factors twice which is the error in her solution, thus she should use each common factor once.

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

y=6

Step-by-step explanation:

7(3y-1)=119      multiple 3y and -1 by 7

21y-7=119        add 7 to 119

21y=126          divide 126 by 21

y=6

Answer:

H

Step-by-step explanation:

Sum of angles in a triangle is 180 degrees

That means

180= 25 + 45+ unknown angle

180= 70 + unknown angle

180 - 70 = unknown angle

110 = unknown angle

Answer: there are 7 in the water

Step-by-step explanation: