-2 (2x + 5) SIMPLIFY


I get one answer but my calculator gives me another pls help!!

Answer:

BC = 144 units

Step-by-step explanation:

BC = BD + DC , substitute values

8x = 4x + 10 + 3x + 8 = 7x + 18 ( subtract 7x from both sides )

x = 18

Thus

BC = 8x = 8 × 18 = 144 units

Answer:

y= 9 ( 5 dollars bill)

x=10 ( one dollar bill)

Step-by-step explanation:

let x be the one dollar bill and y the 5 dollar bill

x+y=19 ⇒ x=19-y

x+5y=55 ( solve by substitute x=19-y)

19-y+5y=55

4y=55-19

4y=36 ⇒ y=36/4

y= 9 ( 5 dollars bill)

x+y=19

x+9=19

x=19-9

x=10 ( one dollar bill)

check :

x+5y=55

10+5(9)=

10+45 = 55 dollars

Answer:

x = 3

Step-by-step explanation:

Hi there !

0 = - 2x + 6

2x = 6

x = 6 : 2

x = 3

Good luck !

You put in 3 to you piecewise function and 2 to your X value

Answer:

c=3

Step-by-step explanation:

[tex]\text {Hey! To solve this problem you must...}[/tex]

[tex]\text {Simplify the Equation:}[/tex]

[tex]\text {Multiply (x+8) by 2.}[/tex]

[tex]\text {x becomes 2x. 8 becomes 16}[/tex]

[tex]2x+16>x+14 \text { will be your answer once you simplify it.}[/tex]

[tex]\text {The Next Step is to Subtract x:}[/tex]

[tex]\text {Q: Why Subtract x instead of adding x?}[/tex]

[tex]\text {A: We need x to cancel out. So x-x will cancel out each other.}[/tex]

[tex]\text {Note: In equations like these x-x is another way of saying 1-1.}[/tex]

[tex]2x+16-x>x+14-x\\x+16>14 \text { would be your answer once you subtract x.}[/tex]

[tex]\text {The Final Step is to Subtract 16.}[/tex]

[tex]\text {Note: Subtracting 16 will cancel out 16-16 and just leave x by itself.}[/tex] [tex]\text {That's what we are working towards.}[/tex]

[tex]x+16-16>14-16\\x>-2 \text { would be your final answer.}[/tex]

[tex]\text {Best of Luck!}[/tex]

[tex]\text {-LimitedX}[/tex]

Hey there!

[tex]2(x+8)>18+x-4[/tex]

In our first step, we will need to simplify the inequality.

[tex]2x+16>x+14[/tex]

Now we have to subtract x from both sides of the inequality.

[tex]2x+16-x>x+14-x=x+16>14\\x+16>14[/tex]

In our last step, we will need to subtract 16 from both sides of the inequality.

[tex]x+16-16>14-16=x>-2\\x>-2\text{(ANSWER)}[/tex]

Hope this helps!

[tex]\text{Please rate this answer and press the thank button!}\\\text{-TestedHyperr}[/tex]

Answer:

The question is not clearly stated, below is the clearly stated question and answer:

A customer wants you to enlarge a photo to 2 3/4 its current height. The photo’s current height is 3 1/4 inches. What should its enlarged height be, in inches?

Answer:

[tex]Enlarged\ height = 8\frac{15}{16}\ inches[/tex]

Step-by-step explanation:

[tex]current\ height\ =\ 3\frac{1}{4} = \frac{13}{4} \\ magnification\ factor = 2\frac{3}{4} = \frac{11}{4} \\Magnification (enlargement)\ =\ (magnification\ factor) \times (current\ height)\\Magnification\ =\ \frac{11}{4} \times \frac{13}{4}\\ Magnification\ =\ \frac{143}{16}[/tex]

Next, we will concert from the improper fraction to a mixed fraction:

when 143 is divided by 16, there will be 8 whole numbers and a remainder of 15, hence, the mixed fraction is:

[tex]\frac{143}{16} = 8\frac{15}{16}[/tex] (Alternatively, a scientific calculator can be used)

Therefore, enlarged height [tex]= 8\frac{15}{16}\ inches[/tex]

Add to find the total number of shapes.

6 + 2 = 8

Circles to total amount of shapes -> 2:8

Divide 2 to both sides.

2/2:8/2

1:4

Therefore, the answer is 1:4

Best of Luck!

Answer:

Step-by-step explanation:

27x -50 + 3x - 2 = 38

30x - 52 = 38

30x = 90

x = 3

27(3) - 50 = 81 - 50 = 31 = FG

Answer:

D

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Domain is the furthest X value while Range is the furthest Y value.

Answer:

28.26 miles

Step-by-step explanation:

Area= pi times radius squared

diameter is twice the radius so 6÷2=3miles

3 miles is the radius

So A= 3.14 × 3²

= 28.26

Formula: A = πr²

Divide to find the radius.

6 / 2 = 3

Solve using the values we are given and solved for.

A = π(3)²

A = 9π

A ≈ 28.26

Best of Luck!

Answer:

y = -1.50x + 15, Domain is from 0 to 10

Step-by-step explanation:

First, look at the question carefully and highlight all the words that are important. We know that the 15 dollar giftcard is important, and we know that each song costs 1 dollar and 50 cents is important. We will make an equation out of this information. Since she is spending money, the value of X will be negated. She starts out with 15 dollars, so that will be our y-intercept. From this, the equation is y = -1.50x + 15. Next, let's look at the domain. We can see that the question asks for a suitable domain, not the domain of the function. Since she didn't have more than 15 dollars from her gift card, any domain from negative infinity until 0 will be crossed out. The x-intercept of this equation is 10, so any value above 10 will be crossed out since you cannot spend more money than you were given. The domain would now be from 1 to 10.

Answer:

The sum of 15 and a number is

85 - 15 = 70

Answer:

I think it is 81cm squared

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ \: 81 \: {cm}^{2} }}}}}[/tex]

Step-by-step explanation:

Given , length of a square = 9 cm

We know that, all the sides of the square are same.

Finding the area of the square

[tex] \boxed{ \sf{area \: of \: a \: square = {l}^{2} }}[/tex]

[tex] \dashrightarrow{ \sf{ \: area \: of \: a \: square \: = \: {(9 \: cm)}^{2} }}[/tex]

[tex] \dashrightarrow{ \sf{area \: of \: a \: square \: = 9 \: cm \: \times \: 9 \: cm}}[/tex]

[tex] \dashrightarrow{ \sf{area \: of \: a \: square = 81 \: {cm}^{2} }}[/tex]

Hope I helped!

Best regards! :D

Answer:

the answer is b)20+5x=55

Answer:

Y=75 bring a linear angle

Answer:

Y is 75 by linear pair

hope it's help h

Step-by-step explanation:

Let x be the number.

Then the algebraic expression will be x^2 + 11x.

The algebraic expression in x will be : x² + 11x

Given,

Variable x,

The sum of the square of a number and eleven times the number.​

Now,

Let the variable be x .

Square of variable : x²

Eleven times of the variable x : 11x

Now combine the term to get the algebraic expression,

Alegbraic expression : x² + 11x

Know more about equations,

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Answer:

26

Step-by-step explanation: I'm pretty sure its 26 because if k = 7 then 4 times 7 equals 28. Then you subtract 2. That's how I got 26.

Answer:

Step-by-step explanation:

[tex]4k-2\\k= 7\\[/tex]

Substitute 7 for k into the given equation

[tex]4(7)-2\\\\=28-2\\\\=26[/tex]

Answer:

1x

Step-by-step explanation:

Answer:

-20x

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

The original amount of dimes Marcy had before sharing with Jaunita is 52.

Let's break down the given information step by step to determine the original number of dimes Marcy had.

Marcy gave Juanita as many dimes as Juanita had.

After this transaction, Juanita now has 26 dimes, and Marcy has x - 26 dimes, where x is the original number of dimes Marcy had.

Juanita gave Marcy as many dimes as Marcy had left.

After this transaction, Marcy now has 20 dimes, and Juanita has 26 - 20 = 6 dimes remaining.

From the above information, we can set up the following equation:

x - 26 = 20 + 6

Simplifying the equation:

x - 26 = 26

Adding 26 to both sides:

x = 52

Therefore, the original amount of dimes Marcy had is 52 dimes.

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Given :

Number of paintings Adrian created each month for the last year are :

4, 5, 2, 1, 0, 3, 2, 4, 3, 2, 7, 5 .

To Find :

The median of the set of data .

Solution :

To find the median we should arrange the numbers in ascending order .

So , 0, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 7 .

Now , median for odd is the middle term but for even numbers it is the average of middle two terms .

So ,

[tex]Median =\dfrac{3+3}{2}\\\\Median =3[/tex]

Therefore , the median of the set of data is 3 .

Hence , this is the required solution .

Answer:

yes it does, -6x2= -18

Step-by-step explanation:

Answer:

1*3*3*3*3*3*3=729. For each term you multiply the previous term by three.

Answer:

2187

Step-by-step explanation:

To find the 8th term, we can find and use the explicit formula.

The standard form of the explicit formula for a geometric sequence is:

[tex]x_n=a(r)^{n-1}[/tex]

Where a is the initial term, r is the common ratio, and n is the nth term.

From the sequence, we can see that the first term is 1, and each term is 3 times the previous term. Thus, the common ratio is 3.

Substituting these into our equation, we will have:

[tex]x_n=1(3)^{n-1}\\x_n=(3)^{n-1}[/tex]

So, to find the 8th term, substitute 8 for n:

[tex]x_8=(3)^{8-1}[/tex]

Subtract:

[tex]x_8=(3)^7[/tex]

Evaluate:

[tex]x_8=2187[/tex]

So, the 8th term is 2187.

And we're done!

Answer:

D

Step-by-step explanation:

Hope this help u

Answer:

c

Step-by-step explanation:

I HAD COMPLETED the test when I REMEMBERED the correct answer.

(remembered is a past tense. Therefore it's more appropriate to use "had completed")

Answer:

18-14=4

4 more sandwiches.

Answer:

9*4 or 9 into 4

Step-by-step explanation:

Answer:

0.4

Step-by-step explanation:

2/5 = 4/10

4/10 = 0.4

2/5 is not a repeating decimal.

Hope This Helps :)

Answer:10 more

Step-by-step explanation:

distributive property so 3*4+3*5 so 12 an 15 or 27.  3*4+5 is 12+5 so 17  27-17 is 10

Answer:

4

Step-by-step explanation:

3(4+5) = 12

3.4+5 = 8.5

12 - 8.5 = 7.5

hope this helps you

Answer:

9.095 is the answer.

Step-by-step explanation: