The width of a rectangle is 9 cm less than twice the length. the perimeter is 72 cm. What is the length and width

Answers

Answer 1

9 times 9=72

Step-by-step explanation:

if if the width is 9 then the length is 9 because 9 times 9 equals 72

Answer 2

Answer:

The length is 15

The width is 21

Step-by-step explanation:

Say the length of the rectangle is x.

Then, the width would be 2x-9.

You can use this to make the equation

x+x+2x-9+2x-9=72

6x-18=72

6x=90

x=15

2x-9=30-9=21

Therefore,

The length is 15

The width is 21


Related Questions

In FGH, mF = 60, mG = 68, and mH = 52. Which side of FGH is the shortest? Pls help

Answers

Answer

FG

This is the answer that I got (apex)

Answer:

FG

Step-by-step explanation:

AP3X

pog

how do you do -5+-9​

Answers

Answer:

-14

Step-by-step explanation:

adding 2 negatives gives you a negative

For which intervals is the function increasing? Select each correct answer.

Answers

Answer:

The answer is (2, ∞).

Step-by-step explanation:

The answer is (2, ∞) because both sides of the line will never meet and will forever increase on the [tex]y-axis^{}[/tex].

For (2, ∞)  intervals is the function increasing in the graph.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

A function is increasing on an interval if for every point on that interval the first derivative is positive.

So we need to find the first derivative and then plug in the endpoints of our interval.

For interval (2, ∞) the function is increasing because both sides of the line will never meet and will forever increase on the y axis.

Hence, for (2, ∞)  intervals is the function increasing in the graph.

To learn more on Graph click:

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10x-2=3x-12 NoFraction

Answers

Answer:−1.429

I need brainliest

Step-by-step explanation:

okay so yoy can subtract 3x from bith sides
7x-2=-12
then add 2 to both sides
7x=10
x=1.43

At El Rodeo it costs $8 for a burrito and $5 for a taco. Last week, El Rodeo made $1123 from selling burritos and tacos. If 76 burritos were sold, write and solve a linear equation to find how many tacos were sold.

SOLUTION:
Question Blank
type your answer...
tacos were sold

Answers

Answer:

103 tacos were sold

Step-by-step explanation:

8(76)+5x=1123

608+5x=1123

-608       -608

5x=515

/5   /5

x=103

Mrljrljepkspdjrotjorje

Help keep simple math 37 points

Answers

The answer is 10% I think

Simplify by combining like terms 2x + 5 + x

Answers

Answer:

3x+5

Step-by-step explanation:

combine like terms add the variables together, then its simplified

The expression in simplest form is represented as 3x+5

What is 13,439 plus 26,948

Answers

Answer:

13,439+26,948= 40,387

if l is parallel to m, find the value of each missing variable(s)

Answers

Answer:

x=24 y=15

step by step solution:

James determined that these two expressions were equivalent expressions using the values of x = 4 and x = 6. Which statements are true? Check all that apply.

7 x + 4 and 3 x + 5 + 4 x minus 1
When x = 2, both expressions have a value of 18.
The expressions are only equivalent for x = 4 and x = 6.
The expressions are only equivalent when evaluated with even values.
The expressions have equivalent values for any value of x.
The expressions should have been evaluated with one odd value and one even value.
When x = 0, the first expression has a value of 4 and the second expression has a value of 5.
The expressions have equivalent values if x = 8.

Answers

Answer:

Two or more Algebraic expressions are said to be equivalent, if both the expression produces same numerical value , when variable in the expressions are replaced by any Real number.

The two expressions are

1. 7 x +4

2. 3 x +5 +4 x =1

Adding and subtracting Variables and constants

→7 x +5=1

→7 x +5-1

→7 x +4

→ When x=2,

7 x + 4 =7×2+4

=14 +4

=18

So, Both the expression has same value =18.

→So, by the definition of equivalent expression, when ,you substitute , x by any real number the two expression are equivalent.

Correct options among the given statement about the expressions are:

1.When x = 2, both expressions have a value of 18.

2.The expressions have equivalent values for any value of x.

3.The expressions have equivalent values if x = 8.

Anne Pederson is driving to Cleveland, a distance of 324 miles. Her car gets 27 miles
per gallon, and gas costs $2.43 per gallon. How much does she spend for gas for the
trip?

Answers

Answer: 29.16

Step-by-step explanation:

1.)

324 ÷27= 12

2.)

2.43 x 12= 29.16

5x + 10 > 35
How do you work this out?

Answers

Answer:

[tex]x > 5[/tex]

Step-by -step explanation:

Solving inequalities is similar to solving equations.

[tex]5x + 10 > 35[/tex]

Subtract 10 from both sides.

[tex]5x > 25[/tex]

Divide by 5 from both sides to isolate the x.

[tex]x > 5[/tex]

Step-by-step explanation:

[tex]5x + 10 > 35 \\ \: 5x > 35 - 10 \\ 5x > 25 \\ x > 5[/tex]

0.645 hm=
cm
Convert

Answers

Answer: 6450 cm

Step-by-step explanation:

15. (01.04 MC)
Simplify the following expression: (-1)(-7)(4) (1 point)

12
28
-12
-28

Answers

Answer:

28

Step-by-step explanation:

(-1)(-7)(4)

Let’s rephrase this

(-1) * (-7) * 4

Multiple in order

(-1) * (-7) = 7

A negative times a negative equals a positive.

7 * 4= 28

Which of the following lines is perpendicular to the line y = -3/5x + 1?

Answers

A perpendicular line to this one would be
.
Y=5/3x+1
.
Hope this helps :)

what is the slope of a line that is perpendicular to the line y= -1\2x+ 5

Answers

Answer:

-1/2

Step-by-step explanation:

Answer:

-1/2

Step-by-step explanation:

(19+2) exponent of 0 ????​

Answers

Answer: 20

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

im confused someone help :(

Answers

Answer:

Step-by-step explanation

If g (x)= 3/2x+4, what is the value of g(2)?

Answers

Answer:

g(2) =7

Step-by-step explanation:

g (x)= 3/2x+4

Let x = 2

g (2)= 3/2 *2+4

      = 3 +4

      = 7

Answer: 3/8

Step-by-step explanation:

Put 2 as the x into the equation.

3/2(2)+4

Multiply 2•2

3/4+4

Add 4+4

3/8

Answer cannot be further simplified.

{8} ⊆ {7,8,9} true or false

Answers

the answer is false

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

Answer:

Homework #1-18: Answer yes or no, if no give the reason

1) Is A ⊆ B given A = silver, B = {gold, silver, diamond}

A is not a set, so it can’t be a proper subset.

Answer: no, because A is not a set

3) Is C ⊆ D given C = {Phoenix}, D = {Phoenix, Glendale, Peoria, Scottsdale}

I need two rules to work.

C is a set so rule 1 is satisfied.

Every element of C is also an element of D, so rule 2 is satisfied.

Answer: yes

5) Is A ⊆ B given A = {2,3} , B = {1,2,3,4,5}

I need two rules to work.

A is a set so rule 1 is satisfied.

Every element of A is also an element of B, so rule 2 is satisfied.

Answer: yes

7) Is A ⊆ B given A = a, B = {| }

A is not a set, so it can’t be a proper subset.

Answer: no, because A is not a set

9) Is A ⊆ B given A = { }, B = {1,2,3,4,5}

Answer yes: the empty set is a subset of every set.

11) Is S ⊂ T given, S= ∅, T = {1,2,3,4,5}

Answer yes: the empty set is a subset of every set.

13) Is A ⊂ B given A = {1,2,3}, B = {3,2,1}

This is not a true statement. The sets are equal and this symbol does not allow sets to be equal.

Answer: no, sets are equal

15) Is C ⊂ D given C = {1,2,3,4,5}, D = {1,2,3,4}

Answer: no, C is not contained in D, so this is not true

17) Is A ⊂ B given A = {4,3,2,1 }, B = {1,2,3,4,5}

A is a set so rule 1 is satisfied,

A is contained in B so rule 2 is satisfied

A is not equal to B so rule 3 is satisfied

Answer: yes (all 3 rules are satisfied)

Homework #19 – 34: Determine which of these are true. (Choose every answer that is true, in

many instances there will be more than one correct choice.)

A = B, A ⊆ B, B ⊆ A, A ⊂ B, B ⊂ A, or none of these

19) A = {Trix, Captain Crunch, Rice Krispees} B = {Rice Krispees}

B is contained, but not equal to A. B is both a subset and a proper subset of A.

A is not contained in B

The sets are not equal.

Answer: B ⊆ A, B ⊂ A

Step-by-step explanation:

here all of it

The measure of each angle in an equilateral triangle is represented by the expression 2x + 4. What is the value of x?
28
88
60
35​

Answers

Answer:B have it ✅

Step-by-step explanation:

The value of x for the given equilateral triangle is 28.

What is an equilateral triangle?

A triangle having all sides equal and each angle measures 60° is called

an equilateral triangle.

Given that, the measure of each angle in an equilateral triangle is represented by the expression 2x + 4.

We know that each angle in an equilateral triangle measures 60°

Therefore, 2x+4= 60

2x = 56

x = 28

Hence, the value of x is 28.

For more references on equilateral triangles, click;

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Select the conic section that represents the equation. y = 2x^2 + 7​

Answers

Answer:

x intercept: none

y intercepts: (0, 7)

Step-by-step explanation:

Answer:

Parabola

Step-by-step explanation:

Solve for x
-2x+1=-x+8

Answers

What is this answer?

Answers

Answer:

A. 2

Step-by-step explanation:

It tries to trick you, but all you are going to do is multiply all the numbers together. -1*-8*(1/4)= 2 which is the same as xyz = 2

Hope this helped!!

How do I find all of the angles for this and what equations would I use to find angle 2,3,4,5,7, &8?​

Answers

Answer:

<2 = supplementary angle=180-110=70

<3 = supplementary angle=180-110=70

<4 = opposite angles=110

<5 = 110 (corresponding angle)

<7 = 70 (corresponding to angle 3)

<8 = 110 (corresponding to angle 4)

Step-by-step explanation:

<2 = supplementary angle=180-110=70

<3 = supplementary angle=180-110=70

<4 = opposite angles=110

<5 = 110 (corresponding angle)

<7 = 70 (corresponding to angle 3)

<8 = 110 (corresponding to angle 4)

You don't need to solve for x to find any of those angles.  If you want to anyway:

4x+10=70

4x=70-10

4x=60

x=60÷4

x=15

What is the slope of the line?
y-4=-7(x-6)y−4=−7(x−6)

Answers

Answer:

-7

Step-by-step explanation:

That's what Khanacademy says

Answer:

-7

Step-by-step explanation:

I got it right

12/7 = k/8 Solve for k

Answers

Answer:

13 5/7

Step-by-step explanation:

Rewrite the equation as  

k

8

=

12

7

.

k

8

=

12

7

Multiply both sides of the equation by  

8

.

8

k

8

=

8

12

7

Simplify both sides of the equation.

Tap for more steps...

k

=

96

7

The result can be shown in multiple forms.

Exact Form:

k

=

96

7

Decimal Form:

k

=

13.71428571

Mixed Number Form:

k

=

13

5

7

Answer: 13 5/7

Step-by-step explanation:

Give the guy above me brainliest! You can give me if you want but give him

The area of a square room is 125 square feet. To the nearest foot, what is the length of one side of the room?

Answers

Answer:

Side = [tex]5\sqrt5\ \text{feet}[/tex]

Step-by-step explanation:

Given that,

Area of a square room is 125 square feet

We need to find the length of one side of the room.

The area of a square shaped room is given by :

[tex]A=x^2[/tex]

Where, x is side of the square room

[tex]x=\sqrt{A} \\\\x=\sqrt{125}\\\\x=\sqrt{5\times 5\times 5}\\\\x=5\sqrt5\ \text{feet}[/tex]

So, the side of the room is [tex]5\sqrt5\ \text{feet}[/tex].

I get brain damage from these please help me. I need a detailed answer of how to do this as well

Answers

I can’t see the picture it’s blurry post it again

A group of seven golfers paid $345 to play a round of golf. Of the golfers, one is a member of the club and six are nonmembers. Another group of golfers consists of two members and two
nonmembers. They paid a total of $140. What is the cost for a member to play a round of golf, and what is the cost for a nonmember?

Answers

Answer:

member = 15

nonmember = 55

Step-by-step explanation:

m = member, n= nonmember

1m+6n=345

2m + 2n =140 (divide all by 2 )

m + n = 70

m= 70 - n

70-n + 6n =345

70 + 5n = 345

5n = 345-70

5n = 275

n = 275÷5

n = 55

m = 70 - 55 = 15

m=15

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