Mathematics Middle School

A triangle has one side that measures x, and the other two sides each measure 4 inches less than x. The perimeter is 19 inches.

What is the measure of x?

5
3
9
2

Answers

Answer 1

Answer:

x=9

Step-by-step explanation:

x + x - 4 + x - 4 = 19

3x - 8 = 19

3x = 19 + 8

3x = 27

x = 9

Answer 2

Answer: x=9

Step-by-step explanation:

There are three sides 2 that are x-4 and 1 that is x. The equation would be

x+2(x-4)= 19 so you would simplify to get

X+2x-8=19 then 3x=27 then divide by three to get x=9

Related Questions

1.
Simplify: 5 + p > 3
p -2
p > 8

Answers

Answer:

p > -2.

Step-by-step explanation:

5 + p > 3

5 - 5 + p > 3 - 5

p > -2.

Answer:

p > -2

Step-by-step explanation:

What is the slope of the line through (-4,2)(−4,2)left parenthesis, minus, 4, comma, 2, right parenthesis and (3,-3)(3,−3)left parenthesis, 3, comma, minus, 3, right parenthesis? Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac57 7 5 ​ start fraction, 5, divided by, 7, end fraction (Choice B) B \dfrac75 5 7 ​ start fraction, 7, divided by, 5, end fraction (Choice C) C -\dfrac57− 7 5 ​ minus, start fraction, 5, divided by, 7, end fraction (Choice D) D -\dfrac75− 5 7 ​

Answers

Answer:

-5/7

Step-by-step explanation:

slope = (difference in y)/(difference in x) = (-3 - 2)/(3 - (-4)) =

= -5/(3 + 4) = -5/7

Answer: -5/7

Answer:

-5/7 that is the answer

Step-by-step explanation:

For the function y = 4x – 2, what is the value of the function when x is equal to -3?
14
-14
-10
10

Answers

Answer:

-14

Step-by-step explanation:im in 8thgrade plus this  4x  4 -3   -12 -2=-14 bam easy

plus

-14 I believe tell me if it’s wrong


Let x represent the number of adults entering the movie theater and let y represent the cost,in dollars,of admission to the movie theater.Write an equation to illustrate the relationship between the number of adults entering the theater and the cost in dollars for admission

Answers

The correct answer is YES hope this helped
The answer is yes hopefully I’m right

what is 8 5/6 x 15/20

Answers

Answer:

6 5/8

Step-by-step explanation:

It's free real estate bby gorl    

Which symbol replaces the box to make the statement true? 2⋅18−18□2⋅[28−3⋅(2+4)]
A.
C. =

Answers

Answer:

2⋅18−18 is less than 2⋅[28−3⋅(2+4)]

Step-by-step explanation:

Answer:

answer is A

Step-by-step explanation:

David went for a run in his town.
• He ran from his house to the school, which is 1.2 miles.
• Then he ran 3 laps around the school track. Each lap is 0.25 miles.
• Then he ran halfway to the gas station. The distance from the school track to the gas station is 2.68 miles
Finally he ran straight home, which is 0.49 miles.
What is the total distance David ran?

Answers

1.2 plus .75 plus 1.34 plus .49 which is 3.78

Which of the following describes a situation in which the total distance a soccer player travels is 0 meter from his starting point?

The player runs 7 meters forward and then runs 7 meters in the opposite direction.
The player runs 3 meters forward and then runs 7 meters in the opposite direction.
The player runs 0 meter forward and then runs 7 meters in the opposite direction.
The player runs 7 meters forward and then runs 0 meter in the opposite direction.

Answers

Answer:

da first one

Step-by-step explanation:

Answer:

the guy on the top is right

Step-by-step explanation:

I took the quiz

does the table below represent a linear or nonlinear function?
​

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

A linear function

Step-by-step explanation:

Find the new amount given the original amount and the percent of change. $5; 40% increase The new amount is $

Answers

Answer:

3

Step-by-step explanation:

5$ -40%=3

If you are asking what is 40% of 5 then your answer is 2

Timothy bought 10 cookies for $5.00.

Let x represent the number of cookies purchased, and let y represent the total cost.

Graph the line that represents the proportional relationship.

PLZ use this graph

Answers

Answer:

Below is the graph

Step-by-step explanation:

Try to make the line straight though! :)

Just at every 2 cockies put a mark

brainliest for correct answer with work

Answers

Slope is 1/2
You take rise over run
So it goes up like 1 and over 2
Actually since it’s like in the negatives n stuff it’ll probs be like -1/2

Which equation represents a line that is parallel to the line whose equation is y=-3x?
A) 1/3x+y=4
B) -1/3x=y=4
C) 6x+2y=4
D) -6x+2y=4

Answers

the answer is C!! if you have any more questions you can ask here! ill try my best to help!

132-3 838 38 383

2838440505

Rewrite the expression in the form 5^n

(5^-8) (5^-10)

Answers

Step-by-step explanation:

This problem is all about bases and exponents.  Because we have a quotient and the bases are both 5's, that means that we can use the rule of exponents for quotients to rewrite and simplify:

That's the simplification as long as you are "allowed" to leave the exponent as a negative number.

8x + 3 (3 - x) = 34
A. x = 5
B. x = 2
C. x = 8
D. x = 4

Answers

Answer:

A. x=5

Step-by-step explanation:

8x+3(3-x)=34

We move all terms to the left:

8x+3(3-x)-(34)=0

We add all the numbers together, and all the variables

8x+3(-1x+3)-34=0

We multiply parentheses

8x-3x+9-34=0

We add all the numbers together, and all the variables

5x-25=0

We move all terms containing x to the left, all other terms to the right

5x=25

x=25/5

x=5

I think this is correct.

Answer: its A; x=5

Step-by-step explanation:

8x+3(3-x)=34

distribute the 3 through the parentheses

8x+9-3x=34

then add the like terms

5x+9=34

subtract the 9 to the 34

you shoud get

5x=25

then divide the 5 on both sides and you get your answer of x=5

Can anyone help me out with this question

Answers

Answer:

70

Step-by-step explanation:

The % itself stands for a ratio of 100, so 70% would be 70/100

Answer:

70/100

Step-by-step explanation:

This is because if you break down a percantage, it is just a fraction or decimal. The numerator is 70 because 70/100 = 0.7

0.7 is just the decimal form of the percent "70%"

maria gas a bag with 6 red marbles, 6 blue marbles , and 4 green marbles. without looking, maria picks one marble. she does not replace it, and she picks another one. on the first pick, maria gets a green marble. what is the probability that she gets a red marble on her second pick?

Answers

Answer:

2/5

Step-by-step explanation:

Please help me I will give you the briain thing and extra points. (image below) 7/13

Answers

Answer:

it is B because the numbers are repeating on the y axis

Solve for x:

2x+8=11x+25

Answers

Answer

x=1.8 or 1 1/8

Step-by-step explanation:

Erica earn money by tutoring and babysitting. She always tutors for 5 hours each week and the amount she babysits changes from week to week. let x be the hours that arica babysitters. Write an expression to show the total numbers of hours erica works each week.
Numbers That you have to use to solve this problem: +,-, . , =, ( , ), x, 5, 8, 13

Answers

Answer: could u put it in a simpler way pls .....

Step-by-step explanation:

please help me with this question

Answers

Answer:

A

Step-by-step explanation:

put the 2 tires and times it by 2 to get the amount of four tires

Simplify the expression by distributing and combining like terms.


HELP ME!!!!!X(

Answers

This is wat i get when i combine like terms 7.6x-1

I really need help on this question! Thank you!

Answers

Answer:

A

Step-by-step explanation:

We know the following:

[tex]OE=5\\\\FG=4\\\\EF=8\\\\[/tex]

so the segment EF is equal to

[tex]EF=EG+GO+OF\\\\[/tex]

and here we can do a trick :)

[tex]EF=(EG+GO)+GO+(OF+OG)-2GO\\\\[/tex]

you see it's the same

[tex]EF=EO-GO+FG\\\\[/tex]

now we plug the values given

[tex]8=5-GO+4\\\\8=9-GO\\\\GO=9-8\\\\GO=1[/tex]

so it's option A

The answer for your question is A

Anna spent $42 of her savings on music downloads. if the amount she spent was 30% of her savings, how much savings did she have before downloads

plzzzz help

Answers

42/x = 30/100
Flip to get x on top and multiply 42 by 100. You get 4200 and then div that by 30 to get 140.
She had 140 before downloads
i solved this nd i agree with them^^

For everyone who answered, 6 divided by 3​

Answers

Answer:

2

Step-by-step explanation:

6/3 = 2

Answer:

2

Step-by-step explanation:

PLEASE HURRY THIS IS DUE IN 10 MINUTES AND I AM REALLY CONFUSED!!

There are 104 beads on 13 bracelets. Which rate best represents the relationship between the number of beads and the number of bracelets?


A. 8 beads per bracelets


B. 13 beads per bracelets


C. 8 bracelets per bead


D. 13 bracelets per bead


I WILL GIVE BRAINLIEST WITH THE RIGHT ANSWER!!!

Answers

Answer:

A. 8 beads per bracelet.

you dont have to do all of them but if u do u get 5 stars and brainiest but pls help mee

Answers

Answer:

1)m=-6     2)p=-25    3)n=13       4)x=1       5)n=-18      6)r=46       7)=-17      8)x=-30         9)n=49          10)a=33

Step-by-step explanation:

1.m-6 2.p-25 3.n13 4.x1 5.m18

Which of the following is a unit rate?

Answers

Answer:

the second one

Step-by-step explanation:

Its measuring by miles per hour

the second one is correct

A lost turtle - swimming 13 feet below the surface of the water - begins to ascend at 0.5 foot per second. In hopes of (harmlessly) capturing the turtle, a diver jumps into the water to a depth of 4 feet before descending at a rate of 0.25 foot per second.

a) Write an equation to model the position of the turtle at any given time.



b) Write an equation to model the position of the diver at any given time.



c) After how long will the diver be able to catch the turtle?



d) At what depth will the diver be able to catch the turtle?

Answers

9514 1404 393

Answer:

  a) T(t) = -13 +0.5t

  b) D(t) = -4 -0.25t

  c) 12 seconds

  d) 7 feet

Step-by-step explanation:

a) The turtle starts at -13 feet and increases its elevation relative to the water's surface by 0.5 ft/second. After t seconds, the turtle will be 0.5t feet closer to the surface, so its depth will be ...

 T(t) = -13 +0.5t

__

b) The diver starts at -4 feet and decreases their elevation relative to the water's surface by 0.35 ft/second. After t seconds, the diver will be 0.25t lower than the initial position, so their depth will be ...

  D(t) = -4 -0.25t

__

c) The diver and turtle will be at the same depth when ...

  T(t) = D(t)

  -13 +0.50t = -4 -0.25t

  0.75t = 9 . . . . . . . . . . . . add 13+0.25t

  t = 12 . . . . . . . . . . . . . . . divide by 0.75

The diver and turtle will be at the same depth after 12 seconds.

__

d) That depth will be ...

  T(12) = -13 +0.5(12) = -13 +6 = -7

The diver and turtle meet at a depth of 7 feet.

Whoever answers first I will give the name the Brainliest.!

900 +$3,400 +) $16,900 + $16,300 + $4,500 + $1,200 =

Answers

Answer:

43,200

Step-by-step explanation:

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