Translate the following phrase to an expression: the difference between twenty and twice a number. Evaluate the expression for n = 3.

Answer:

Step-by-step explanation:

Perimeter of a rectangle = 2(L+W)

L is the length of the triangle

W is the width

If the perimeter of a rectangle is represented by the expression [tex]2\left(3x+1\right)+2[/tex]

In order to know what wat each part represents, we will rewrite the given equation in the form 2(L+W).

Given

[tex]2\left(3x+1\right)+2x[/tex]

Perimeter of a rectangle

[tex]2L+2W[/tex]

Compare the given function with the perimeter to get L and W

[tex]L = 3x+1 \ and \ W = x[/tex]

Hence the following statements explain correctly what each part of the expression represents

- One side of the rectangle measures x (the length)

- One side of the rectangle measures 3x + 1 (the width)

- 2 is the coefficient in each term that represents 2 lengths and 2 widths in a rectangle.

Answer:

He first made the mistake when multiplying 3(5-4x)

He accidentally put 15+12 x

It should be 15-12x

The answer would then come out to be x=2

-5= 2x+3(5-4x)

-5= 2x+15-12x

-5= -10x+15                     Can i get brainliest please?

-20= -10x

2= x

Answer:

3/6 = 4/8

Step-by-step explanation:

they're both halves

Answer:

Their are 8 thousands in the thousands place

Step-by-step explanation:

Answer:

Son's age=7

Daniel's age=33

Step-by-step explanation:

d = s + 26

d + 6 = 3(s + 6)

Substitute!

s + 26 + 6 = 3s + 18

Simplify and distribute:

s + 32 = 3s + 18

Subtract s:

32 = 2s + 18

Subtract 18:

14 = 2s

Divide by 2:

7 = s

d = 7 + 26

d = 33

Answer:

Convex I believe

Step-by-step explanation:

Trust me

Answer:

concave

Step-by-step explanation:

Answer:Rip

Step-by-step explanation:

R

I

P

Answer:

x=12

Step-by-step explanation:

3x=2x+12

-2x from each side

x=12

3x = 2x + 12

X= -12

hope this helped!!!

Answer:

meter stick

Step-by-step explanation:

The precision of a measuring instrument refers to its ability to measure very small increments.

For instance, the meter rule can measure lengths to a precision of about ±0.1cm. Hence, the smaller the increment that a measuring instrument can measure, the more precise the measuring instrument is.

Answer:

D=23

Step-by-step explanation:

This is a 90 degree angle

90-39=51

51-5=46

46/2=23

Answer:

200 m.

Step-by-step explanation:

Step 1:

Length × Width = Area      Equation

Step 2:

5 × 40      Multiply

Answer:

Area = 200

Hope This Helps :)

Answer:

40 feet

Step-by-step explanation:

x/20=6/3

3x/3=120/3

x=40 feet

Answer:

the top answer is correct

Step-by-step explanation:

Answer:

8(-9) and -12-60

1+2/4 and 1-1/4

Step-by-step explanation:

36 ÷ 3 = 12 and 2^2 + 2 = 6 (nah)

-(2/3)^2 = -4/9 and 4/9 (nah)

8(-9) = -72 and -12 - 60 = -72 ( yes)

1+2/4 = 3/4 and 1 - 1/4 = 3/4 (yes)

Answer:

c and d have equal values.

Step-by-step explanation:

a)

[tex]36/3 +3 \\12+3 \\15[/tex]

[tex]2^{2}+ 2\\4+2 \\6[/tex]

therefore, [tex]15\neq 6[/tex]

b)

[tex]-(\frac{2}{3})^{2}\\ -\frac{4}{9}[/tex]

therefore, [tex]-\frac{4}{9} \neq \frac{4}{9}[/tex]

c)

[tex]8(-9)\\-72[/tex]

[tex]-12-60\\-72[/tex]

therefore, [tex]-72= -72[/tex]

d)

[tex]\frac{1+2}{4} \\\frac{3}{4}[/tex]

[tex]1-\frac{1}{4} \\\frac{4}{4} -\frac{1}{4}\\\frac{3}{4}[/tex]

therefore, [tex]\frac{3}{4} = \frac{3}{4}[/tex]

hope this helps lol ;)

Answer:

x = 8

Step-by-step explanation:

1. Simplify 12/6 to 2.

x/4 = 2

2. Then, multiply both sides by 4.

x = 2 * 4

Simplify: x = 8

I hope this helps!

Answer:

1000 to 9999 are all of the 4-digit counting numbers

1 to 9999 gives 9999 counting numbers, but we are leaving out 999 of them

9999-999=9000 counting numbers that are 4-digit numbers

9000-1800=7200 4-digit numbers that are not multiples of 5

Step-by-step explanation:

There are 7,000 four-digit counting numbers that are not multiples of 5.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

To find the number of four-digit counting numbers that are not multiples of 5, we need to find the total number of four-digit counting numbers and then subtract the number of four-digit counting numbers that are multiples of 5.

There are 9 choices for the first digit (it cannot be 0, since we are looking at four-digit numbers), and 10 choices for each of the remaining three digits (they can be 0-9).

So, the total number of four-digit counting numbers is:

9 × 10 × 10 × 10

= 9,000

To find the number of four-digit counting numbers that are multiples of 5, we need to consider the last digit.

Since a number is a multiple of 5 if and only if its last digit is 0 or 5, there are 2 choices for the last digit.

The first three digits can be any of the 10 digits, so there are:

10 × 10 × 10 × 2 = 2,000

four-digit counting numbers that are multiples of 5.

Therefore, the number of four-digit counting numbers that are not multiples of 5 is:

9,000 - 2,000 = 7,000

Thus,

There are 7,000 four-digit counting numbers that are not multiples of 5.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ3

Answer:

y= 8 /3 x+ −17 /3

Step-by-step explanation:

Step 1: Add -8x to both sides.

Step 2: Divide both sides by -3.

Hope this helped!

Have a great day :)

Answer:

y= 17/3 - 8/3x

Step-by-step explanation:

subtract 8x from both sides and get -3y = 17- 8x. Next divide everything by -3 (because it’s the number in front of Y) making it Y= 17/3 -8/3x (were left with big numbers because neither 17 or 8 can be divided by 3)

Answer:

The location of point T is [tex]\vec T = (7.5, 2.25)[/tex]. Graph is included at the end of the explanation as attachment.

Step-by-step explanation:

The SQ : QT ratio means that there are 4 units of SQ for each 3 units of QT. Vectorially speaking, we notice that:

[tex]\overrightarrow {SQ} = \frac{4}{7}\cdot \overrightarrow {ST}[/tex] (Eq. 1)

[tex]\overrightarrow{QT} = \frac{3}{7}\cdot \overrightarrow {ST}[/tex] (Eq. 2)

Now, we eliminate [tex]\overrightarrow{ST}[/tex] by equalizing (Eq. 1) and (Eq. 2):

[tex]\frac{7}{3} \cdot \overrightarrow{QT} = \frac{7}{4}\cdot \overrightarrow{SQ}[/tex] (Eq. 3)

From Linear Algebra, we know that:

[tex]\frac{7}{3}\cdot (\vec T - \vec Q) = \frac{7}{4}\cdot (\vec Q-\vec S)[/tex] (Eq. 3b)

And we clear [tex]\vec T[/tex]

[tex]\frac{7}{3}\cdot \vec T -\frac{7}{3}\cdot \vec Q = \frac{7}{4}\cdot \vec Q -\frac{7}{4}\cdot \vec S[/tex]

[tex]\frac{7}{3}\cdot \vec T = \frac{49}{12}\cdot \vec Q - \frac{7}{4}\cdot \vec S[/tex]

[tex]\vec T = \frac{3}{7}\cdot \left(\frac{49}{12}\cdot \vec Q-\frac{7}{4}\cdot \vec S\right)[/tex]

[tex]\vec T = \frac{7}{4}\cdot \vec Q-\frac{3}{4}\cdot \vec S[/tex]

If we know that [tex]Q(x,y) = (3, 0)[/tex] and [tex]S(x, y) = (-3,-3)[/tex], then we have that [tex]T(x,y)[/tex] is:

[tex]\vec T = \frac{7}{4}\cdot (3, 0) - \frac{3}{4}\cdot (-3, -3)[/tex]

[tex]\vec T = \left(\frac{21}{4}, 0 \right) + \left(\frac{9}{4},\frac{9}{4}\right)[/tex]

[tex]\vec T = \left(\frac{21+9}{4},\frac{0+9}{4} \right)[/tex]

[tex]\vec T = \left(\frac{15}{2}, \frac{9}{4}\right)[/tex]

[tex]\vec T = (7.5, 2.25)[/tex]

At last we plot the segment with all points described on statement. We can check the result in the attachment set below.

Answer:

h = -0.0166t^2 + 30.

Step-by-step explanation:

The graph of the flight is a parabola which opens down and is symmetrical about the y axis, passes through the x axis at -42.5 and 42.5 and has a vertex at (0, 30).

So we have -a(t^2) + 30 = 0   where t is the time

(42.5)^2 * -a  = -30                (42.5 as its 1/2 * 85).

a = 30/2806.25

= 0.01661

So the equation is height h = -0.0166t^2 + 30

180 is the LCM of the three numbers

Answer:

260 ways

Step-by-step explanation:

There are 3 scenarios.

Scenario #1, all colors used are different. A, B, C, and D each have their own individual color.

In this case, there would be 5x4x3x2=120 ways for this to happen.

(Since each color is different, after one is chosen there are only n-1 colors left, hence why it is 5x4x3x2)

Scenario #2, EITHER A&C OR B&D are the same color (Diagonal rectangles share no edges so they share a color).

In this case, there would be 2(5x4x1x3)=120 ways for this to happen. (Since we have two options, either A&C or B&D share a color, we multiply (5x4x1x3) by two to represent both options. Since the diagonal pairs must share one color, if, for example, A's color has been chosen from 5 options, C has only 1 option to choose from because it MUST match A's color)

Scenario #3, BOTH A&C AND B&D are the same color, meaning only 2 colors are used.

In this case, there would be 5x4x1x1=20 ways for this to happen.

(If A is already one color, B must choose a color from the remaining 4 options, C must match A so it has 1 option, similarily D must match B so it also has only 1 option, hence 5x4x1x1)

Now we add up all possible scenarios.

120+120+20=260 ways

Answer:

625 feet below sea level

Step-by-step explanation:

Answer:

ON THE FIRST DIVE HIS ELEVATION- -5 FEET

AND ON 4 MORE TIMES SO,

Total times his elevation decreased:5

Distance moved= 5*5

= 25

Answer:B 100%

Step-by-step explanation:

Answer:

3 one I hopeeeeee0e9e9

Answer:

January 8th 1942

Oxford, United Kingdom (UK)

Step-by-step explanation:

plz mark brainllist if this helped

Step-by-step explanation:

stephen Hawking was born on January 8, 1942 In oxford city of United kingdom

Answer:-15 is correct

Step-by-step explanation:

(-6)-9 is the same as -6-9 since parenthesis aren’t really needed in thins case and if you use the order of operations you go left to right. So, -6-9=-15 because a negative- a negative= a negative.

Answer:

-37, -36, -35

Step-by-step explanation:

x+x+1+x+2=x-71

3x+3=x-71

2x=-74

x=-37

So x=-37, x+1=-36, x+2=-35

Add these three numbers and you get -108 which is 71 less than -37