A triangle has side lengths of 2x , x + 4, and 3 (x + 3). Find the value of x if the perimeter of the triangle is 55 inches.​

Answers

Answer 1

Answer:

x=7

Step-by-step explanation:

55=2x+(x+4)+[3(x+3)]

55=2x+x+4+3x+9

55=6x+13

55-13=6x

42=6x

7=x

Answer 2

Answer:

7 inches

Step-by-step explanation:

Perimeter is the sum of side lengths:

P = 2x + x + 4 + 3(x + 3)P = 55

Solve for x:

2x + x + 4 + 3(x + 3) = 553x + 4 + 3x + 9 = 556x + 13 = 556x = 55 - 136x = 42x = 42/6x = 7

Related Questions

Estimate the measure of this angle within 15°.

Answers

Guess what I hate i ready and I don’t know the answer sorry

will mark brainliest pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Simplify the expression

5 +10/3

=

7

PEMDAS. Do division first.

Step-by-step explanation:

Simplify the expression

18/2*3

/ 3(3)

=3

I know this for a fact both are correct took test got a 100 also its easy PEMDAS

Answer:

[tex]{ \tt{first \: image}} \\ [/tex]

[tex] = \frac{18 \div (2 \times 3)}{3(3)} \\ \\ = \frac{18 \div 6}{9} \\ \\ = \frac{3}{9} \\ \\ = \frac{1}{3} [/tex]

[tex]{ \tt{second \: image}}[/tex]

[tex]5 + 10 \div 5 [/tex]

introduce a bracket:

[tex] = 5 +( 10\div 5) \\ = 5 + 2 \\ = 7[/tex]

2 17× 415 find this answer

Answers

Answer:

[tex]217 \times 415 \\ \\ \\ \\ \\ \\ \\ = 90055[/tex]

it's was helpful to you ❣️❣️

217 X 415 = 90055
Hope this was helpful, please like :))

Trena's jump rope is 3.5 feet
long. Jackie's is 3.8 feet long.
How much longer is Jackie's
jump rope than Trena's?

Answers

Answer:

0.3 feet

Step-by-step explanation:

3.8 - 3.5 = 0.3 feet

The presence of a midpoint will result in what type of segments?

Answers

Step-by-step explanation:

The presence of a midpoint will result in congruent segment.

The type of segment that the presence of a midpoint will result in is called; Congruent Segments

Types of Segments

Now, when we are talking about congruency, we are simply referring to the concept of equality.

Thus, when we say that two angles are congruent, it simply means they are equal.

Now, when we introduce a mid point to a line segment, what this does is to divide the line into two equal parts.

Equal segments are congruent and as such we can say that congruent segments are formed.

Read more about congruent Segments at; https://brainly.com/question/1675117

4.
Find the number of real number solutions for the equation. x2 – 4x + 4 = 0

A. cannot be determined
B. 2
C. 1
D. 0

Answers

X=2
Do you need me to explain it it is this good?

The angless of a quadrilateral are in the ratio 3:5:9:13. Find all the angles of the quadrilateral

Answers

Answer: 156°

Step-by-step explanation:

As you know angle sum of a quadrilateral = 360°

So, 3x + 5x + 9x + 13x = 360°

Or, 30x = 360°

Or, x = 12°

Hence: 3x = 36°, 5x = 60°, 9x = 108° and 13x = 156°

32. DINING OUT The Ross family recently diped at an Italian restaurant/ Each of the four family members ordered a
pasta dish that cost $11.30. a drink that cos($1.50, and dessert that cost $2.75,
a. Write an expression that could be used to calculate the cost of the Ross' dinner before adding tax and a tip.

Answers

4(11.30+1.50+2.75)= T

HELP!!! Will mark brainliest!!

Answers

Step-by-step explanation:

BDC and ACD are complementary with each other. that means together they cover the full 180 degrees of the half circle that can be drawn on one side of a flat line.

180 = 11x + 25 + 4x + 5 = 15x + 30

150 = 15x

x = 10

BDC = 11x + 25 = 11×10 + 25 = 110 + 25 = 135 degrees

ACD = 4x + 5 = 4×10 + 5 = 40 + 5 = 45 degrees

Eight subtraced from the product of seven

Answers

Answer:

7x - 8 hope this helps and have a great day

Step-by-step explanation:

IF ONE THIRD OF THE SCHOOL STUDENTS LIKE MATHEMATICS AND 400 STUDENTS DO NOT LIKE MATHEMATICS , THEN HOW MANY STUDENTS DOES THE SCHOOL HAVE ?
A. 600 B. 800
C. 200 D. 1000

Answers

Answer:

There are 600 students in this school.

Step-by-step explanation:

Let p represent the total population of the school.

Then (1/3)p represents the number of students who like math.  Subtracting this (1/3)p from p gives an expression representing those who do not like math:  

p - (1/3)p = (2/3)p

400 students do not like math, so (2/3)p = 400.

Solve this for p by multiplying both sides by (3/2):

(3/2)(2/3)p = (3/2)(400), which simplifies to p = 600.

There are 600 students in this school.

to rent a popcorn machine, it costs 35$ plus $6.95 for each hour. write and evaluate an expression to find the total cost of renting the popcorn machine for 5 hours. then make a table showing the cost for 5, 6, 7, and 8 hours

Answers

Answer:

y=6,95x+35

Step-by-step explanation:

y=6,95x+35

y=6,95*5+35=69,75 for 5 hours

for 6 hours y=76,7

for 7 hours y=83.65

for 8 hours y=90,6

lemme know if its right <3.

9. El radio de una pelota de básquetbol es aproximadamente 3.6 veces mayor
que el radio de una pelota de tenis. ¿Cuántas veces mayor es el volumen
de una pelota de básquetbol que el volumen de una pelota de tenis?
4
Nota: El volumen de una esfera es V = -tr

Answers

Answer:

so the volume of the basketball is 46.656 times greater than the volume of the tennis ball.

Step-by-step explanation:

Aaron has a collection of American coins. He has 3 times as many 10 cent coins as 25 cent coins, and he has some 5 cent coins as well. If he has 8 coins with total value $11.40. how many of each type does he have?

Answers

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

HEEEEELLLLLLPPPPPPP!!!!!!!!!!!!!!
Find the area and perimeter.

20x2 − 12x; 10x − 5
12x2 − 20x; 7x − 5
7x2 − 5; 11x − 10
12x2 − 20x; 14x − 10

Answers

Area

(3x - 5) · 4x = 3x · 4x - 5 · 4x =

= 12x² - 20x

Perimeter

2 · (3x - 5) + 2 · 4x =

= 6x - 10 + 8x = 14x - 10

What is the domain in roster notation(numerical order) x= -2,-1,1,3,3 y=3,-3,0-3,3

Answers

Answer:

Domain is {x|x = -2, -1, 1, 3}

Step-by-step explanation:

I. When domain is x.value and renge is y.value

Got more question or something to discuss? leave comment below

Solve the two-step equation and identify the steps.

1.4x + 6.1 = –7.9

1. The first step is to
on both sides.
2. The second step is to
on both sides.


The solution is x =
.

Answers

Answer:

x=-10

Step-by-step explanation:

The first step is to subtract 6.1 on both sides:

1.4x=-14

The second step is to divide 1.4 on both sides:

x=-10

Hope this helps

Answer:

1. The first step is to subtract 6.1 on both sides

2. The second step is to divide 1.4 on both sides

The solution is x = -10

Find the distance between the pair of points. ​(5​,25​) and ​(−19​,−12​) The distance is nothing. ​(Round to the nearest thousandth as​ needed

Answers

Answer:

44.1

Step-by-step explanation:

- To find the distance, we have to use the distance formula:

d = √(x2 - x1)² + (y2 - y1)²

d = √(-19 - 5)² + (-12 - 25)²

d = √(-24)² + (-37)²

d = √(576) + (1369)

d = √1945

d = 44.1

Find the image of (-1, 3) obtained by translating
2 units down, followed by a rotation of 180°
counterclockwise about the origin.
HELP QUICK

Answers

Answer:

(1, - 1 )

Step-by-step explanation:

A translation of 2 down means subtract 2 from the y- coordinate

(- 1, 3 ) → (- 1, 3 - 2 ) → (- 1, 1 )

Under a counterclockwise rotation about the origin of 180°

a point (x, y ) → (- x, - y ) , then

(- 1, 1 ) → (1, - 1 )

Overall

(- 1, 3 ) → (- 1, 1 ) → (1, - 1 )

The image of (-1, 3) was obtained by translating 2 units down, followed by a rotation of 180° counterclockwise about the origin is (1,-1).

What is coordinate?

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.

The given point with coordinates of (-1,3), when translated downwards will have the coordinated equal,

(-1,3) ⇒ (-1, 3-2) ⇒ (-1, 1)

Now, since the translation is about 180° in the counter-clockwise direction, the coordinates of the new point will be equal to,

(-1,1) ⇒ (1, -1)

Hence, the image of (-1, 3) obtained by translating 2 units down, followed by a rotation of 180° counterclockwise about the origin is (1,-1).

Learn more about Coordinates:

https://brainly.com/question/23450276

#SPJ2

sq root 30
A whole number, natural number, integer
B rational
C irrational
D whole number, integer, rational

Answers

Answer:

good luck

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

this is the answer

it is irrational because it cannot be expressed in a ratio of two integers

please give me brainliest .

Is 1/8 big than 1/11

Answers

Yes, if you split a cake in 8 parts and split another cake in 11 parts. The pieces in the first cake would be bigger because it has been split less.

if x and y are two overlapping subsets of a universal set U, write the relation between n(U),n(X U Y), and n(xūy).​

Answers

Answer:

the relation between them are

n(U) = n(X U Y) + n(xūy).

Help solve pls fast
it's a maths question ​

Answers

Answer:

Step-by-step explanation:

[tex][(\sqrt[4]{x^{\dfrac{3}{4}}})^{\dfrac{-4}{3}} ]^{4}[/tex]

[tex]= [(x^{\frac{3}{4}*\frac{1}{4}})^{\frac{-4}{3}}]^{4}\\\\\\= [(x^{\frac{3}{16} ) ^{\frac{-4}{3}}}]^{4}\\\\=[ x^{\frac{3}{16}*\frac{-4}{3}}]^{4}\\\\=[x^{\frac{-1}{4}}]^{4}\\\\=x^{\frac{-1}{4}*4}\\\\=x^{-1}\\\\=\dfrac{1}{x}[/tex]

Hint:

[tex](a^{m})^{n}=a^{m*n}[/tex]

Answer:

[tex]1/x[/tex]

Step-by-step explanation:

To simplify, work from the inside out.

We start with

[tex]\sqrt[4]{x^{3/4}}[/tex]

on the inside. And we can change the fourth root into a fractional exponent -- 1/4:

[tex](x^{\frac{3}{4})^{1/4}[/tex]

A power of a power means multiply the exponents, giving

[tex]x^{\frac{3}{4} * \frac{1}{4}} = x^{3/16}[/tex]

So now we have

[tex][(x^{3/16})^{-4/3}]^4[/tex]

From here, apply the "power of a power rule" again, working from the inside out.

[tex](x^{-12/48})^4[/tex]

[tex]x^{-48/48}[/tex]

[tex]x^{-1}[/tex]

or

[tex]1/x[/tex]

Translate each word expression into an algebraic expression.
(plss answer)

1. One-half the difference of a number and 5:

2. The difference of twice a number and 8 increased by 5:

3. The quotient of 5 and the sum of 8 and twice a number

4. 8 decreased by the product of 5 and a number

5. One-half a number subtracted from 5

6.The square of the difference of the opposite of a number and 5

7. The difference of the square of the opposite of a number and 5

8. The difference of the squares of the opposite of a number and 5

9. Twice the difference of a number and 5

10. The difference of twice a number and 5

Answers

Answer:

1. (n-5)÷2 2. (n×2-8)+5 3. 5÷(8+n×2) 4. 8-(5×n) 5. 2÷(5-n) 6. (-n-5)² 7.

plz just solve the questions 3 and 4 only thank you brainiest will be given out to the correct answer

Answers

Answer:

3. the proportional relationship is that for every cup of blue paint, you need 5 cups of yellow paint. so the relationship between the yellow and blue paint that keeps it proportional is 5 time the cups of blue paint, is how many cups of yellow paint you need

4. constant of proportionality is 5 because for every cup of blue paint, you need 5 cups of yellow paint:

2 * 5 = 10

1 * 5 = 10

3 * 5 = 10

Step-by-step explanation:

Which function is graphed below?

Answers

Answer:

f(x) = sin(x)

Step-by-step explanation:

If you want to remember how sine graph looks like it's always an s-like shape.

help me on questions 27-35 and no linkss

Have a good day!!

Answers

Answer:

-8vhvcdzssaghjkgddsaaasdggbh

Name the segments in the figure

Answers

Answer:

perpendicular

Step-by-step explanation:

17. What unit of time will make the statement true?
seconds + seconds x day = seconds ?

Answers

Answer:

seconds could be anything but day was 0 then there would be no seconds, right??? that would basically be true.

Step-by-step explanation:

The midpoint of AB is M(3,-2). If the coordinates of A are (1, -3),
what are the coordinates of B?

Answers

Answer:

23 just took the test

Step-by-step explanation:

Answer:

B(5,-1)

Step-by-step explanation:

The formula for finding the midpoint of any line is: [ (x1+x2) / 2 ] ,  [ (y1+y2) / 2 ] .

So, x1=1 and x2=x. And y1=-3 and y2=y.

So,

(1+x)/2=3, then manipulating it gives x=5.

And,

(-3+y)/2=-2, then manipulating the equation gives y=-1.

Hence B(5,-1)

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