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

A car has a mass of 19.3 kg and an acceleration of 18.93 m/sec/sec. What is the force on the car?

Answers

Answer:

You know the mass of an object and the force applied to the object to make it move. ... a 1.5m l.Sm. 22 sec sec. PnAcTlCf p+--l. 1. What is the rate of acceleration of a 2 ... If the car has a mass of 1,000 kilograms

Step-by-step explanation:

can someone help me out? (serious answers only)

Answers

Answer:

49

Step-by-step explanation:

49

The answer will be 49

What is the slope of the line that contains these points?

Answers

(15,-10) (17,2)
(2+10)/(17-15)= 12/2 = 6
The slope is 6

Answer:6

Step-by-step explanation:15+2=17 and -10+12=2 so rise over run means 12/2=6/1=6

What is the slope of the line that passes through the points (4, 6)(4,6) and (-16, -18) ? (−16,−18)? Write your answer in the simplest form.

Answers

The slope of the line that passes through the points (4, 6)(4,6) and (-16, -18) is to be considered as the 1.2.

Calculation of the slope of the line:

here we used the following formula

So,

[tex]= y_2-y_1\div x_2-x_1[/tex]

So,

-18-6=-24

And,

-16-4=-20

Now

[tex]= -24\div -20[/tex]

= 1.2

Hence, The slope of the line that passes through the points (4, 6)(4,6) and (-16, -18) is to be considered as the 1.2.

Learn more about slope here: https://brainly.com/question/19062904

The slope of the line that passes through the points (4, 6) and (-16, -18) is; 6/5.

What is the slope?

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line. Slope of parallel lines are same. Slopes of perpendicular lines are negative reciprocal of each other.

[tex]m = \dfrac{y-q}{x-p}[/tex]

Given that the line that passes through the points (4, 6) and (-16, -18)

WE need to find the slope of the line.

Since, [tex]m = \dfrac{y-q}{x-p}[/tex]

Therefore, m = -18 - 6 / -16 - 4

m = 24 / -20

m = 6/5

Hence, The slope of the line that passes through the points (4, 6) and (-16, -18) is; 6/5.

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Really quick question please answer it in fraction form. What is 6* 2/5?

Answers

Answer:

12/5

Step-by-step explanation:

6(2/5)

= (6/1) * (2/5)

= (6)(2) / (1)(5)

= 12/5

A bunch of bananas cost $4, a pineapple cost $2 more than a bunch of banana, and 4 apples cost one-half of a pineapple.
1. Write an equation that shows the cost of a pineapple in terms of bananas. Use this equation to find the cost of a pineapple.
2. Write an equation that shows the cost of 4 apples in terms of a pineapple. Use this equation to find the cost of 4 apples.
3. Write an equation that shows how much more a bunch of bananas cost compared to4 apples where x is the unknown value. Then, solve the equation.

Answers

X=1
I did this yesterday

PLZZZ HELP MEEEE

Select all the expressions that can be used to find the price of a $400 telescope after a 32% markup.

A:400 • 0.32

B:400 • 3.2

C:400 • 1.32

D:400 + 400(0.32)

E:400 • 400(1.32)

Answers

The answer would be a would just have to look up 32% as a decimal

Answer:

it is b i had this question

Step-by-step explanation:

What is the slope of the line that passes through the points (-9, 10)(−9,10) and (21, 15) ? (21,15)? Write your answer in the simplest form.

Answers

Answer:

Slope Is 1/6

Step-by-step explanation:

That's the answer

Answer:

slope = 0.75

Step-by-step explanation:

ILL GIVE BRAINLIEST PLZ HELP IM BEGGING
I NEED THE 2 QUESTIONS ASAP

Answers

Answer:

Step-by-step explanation:

question 1: options 2 and 5 have negative slopes

question 2: option 3

Hey lol I need points so yea lol

NEED HELP PLSSSSS
What is the equation of the line in slope -intercept form? *
A. y= x +8
B. y= x - 8
C. y = 8x +8
D. y = 8x - 8

Answers

Answer:

d

Step-by-step explanation:

The equation of the line in slope -intercept form is y=x-8, Option b is correct.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

From the graph let us take two points of line joining which are (8, 0) and (0, -8).

m=-8-0/0-8=1

So slope of line is 1.

Now let us find find the y intercept

0=1(8)+b

0-8=b

b=-8

Slope intercept form of line is y=x-8

Hence,  the equation of the line in slope -intercept form is y=x-8, Option b is correct.

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A recipe calls for 5 cans of corn to serve 4 people. If Jack is planning to serve a crowd of 10 people, how many cans of corn should he purchase?

A. 2 cans
B. 8 cans
C. 15 cans
D. 12.5 cans

Answers

Answer:

d

Step-by-step explanation:

I would say C, because you cannot cut a can in half. If you could I would say D.

Find a rational number and an irrational number that are between 9.5 and 9.7. Include the decimal approximation of the irrational number to the nearest hundredth.

Answers

Answer:

9.56

Step-by-step explanation:

9.56 I just answered this question

I hope this picture makes you feel better

Answers

haha thanks :) you made my day!

HELP PLS which number is located between 1.2 aand 1.4 on the number line . 1.22 1.03 1.44 1.19 one these answers above

Answers

It’s 1.22 hope this helps

What is the mass of a triangle?


9/5 grams

7/5 grams

3 grams

11 grams

Answers

3 grams i believe hope u get it right

help me please, I will mark brainliest. T^T

btw I know this is not math but if I put it as physics no one would see it :')

Answers

Answer:

a Destiny

b depending on liquid they would be less dense

Raymond baked 15 clay jars each day for 5 days. At the end of the 5 days he noticed that 6 jars came out of the oven with defects. What is the ratio of jars with defects to the total number of jars baked?
A.2:5
B.2:23
C.2:25
D.23:25

Answers

Answer: C.2:25

Step-by-step explanation:

sry i cant couse to us 100 points becuse i need them but first to answer correctly
gets brainlyes


what is the distance between Earth and the centre of the Milky Way galaxy? try your best and dont search it up becuse that ruens the fun. hint: its in light years and its far away (btw i dont know if this is cinsited math if not tell me pls) fun fact are galexy is orbiting another galaxy called the Andromeda galaxy.

Answers

Answer:

Its either 20,000 or 25,000 light years

Step-by-step explanation:

Is it right

about 25,000 light-years

Amanda had $20 when she went into the shopping center. She purchased a snack to eat for $y and then bought two items at a clothing store each of which cost $x. Which expression represents the amount of money she has left after the purchases? *

Answers

x+y = 20
Expression: 20 - 2x - y (expressions don’t have equal signs)

Alyssa bought a dress for $52 and 3 pairs of jeans. She paid a total of $125. Write an equation to represent this word problem
(PLS ANSWER SERIOUSLY, I WILL GIVE A BRAINLY CROWN TO WHOEVER ANSWERS RIGHT).

Answers

I’m pretty sure it’s $125-$52= 73. 73/3
y= m x+b

52=3x+125

or you could just do it the easier way by subtracting 52 from 125 which is 73 and 73÷3 is 24.3 depends on what system you have but I’m pretty sure it’s probably just 24 if you can’t do decimals

Please help me! Will give brainliest! (Real one)

Answers

Answer:

Since there are 32 fluid ounces in 1 quart and we need 3 quarts we multiply 32 and 3 and get the result of which is 96 we need to divide that by eight to get the correct number to multiply 4.50 by so we get the result of 12 now it is 12 times 4.50 which is 54 so it costs 54 dollars.

Step-by-step explanation:

Hope this helps

54 dollars


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The solution to the following equation is x=0
6x+7= 1/2x+7

True
or
False
(The 1/2 is a fraction)

Answers

Answer: True

Explanation:
If X=0 then that would make the problem 6(0)+7=1/2(0)+7. Anything multiplied by 0 is 0 so that would cancel the 6 and the 1/2. That means that you would be left with 7=7

Answer:

True

Step-by-step explanation:

To see if that is the solution, lets solve the equation.

6x + 7 = 1/2x + 7

Subtract 1/2x from each side to bring it to the right

6x - 1/2x + 7 = 7

Subtract 7 from each side to bring it to the left

6x - 1/2x = 7 - 7

Simplify it

5.5x = 0

Divide 5.5 from each side to leave x alone.

x = 0

The answer is true. I hope this helps!

HELP PLZZZZZZ
Which of the following shows 30 + 12 rewritten using the distributive property and the GCF of the addends?
3(5 + 2)
6(10 + 6)
3(10 + 12)
6(5 + 2)

Answers

Answer:

6(5+2)

Step-by-step explanation:

5+2 is 7 then 7×6 is 42 and 30 + 12 is 42

What is the volume for the cone

Answers

Answer:

50.2654825cm^3 or 16 [tex]\pi[/tex] cm^3

Step-by-step explanation:

useds a calculator

12 cm sorry if it’s wrong

1) math need help ASAP thank you :) slope and y-intercept

Answers

What he said..........

Albert and Molly design posters. In December, they each worked for 25 days and made 20 posters. Molly was on vacation in the beginning of January, so Albert worked for 10 days before Molly could join him. Together, they worked another 15 days and made a total of 15 posters. How many posters can Molly make if she works alone for 10 days?

Answers

Answer:

She could make 8

Step-by-step explanation:

Step 1 - 20/25 = 0.8

step 2 0.8 x 10 = 8

. Simplify an expression for the perimeter of the equilateral triangle shown below.

Answers

Answer:

1.75×2-2

Step-by-step explanation:

look at the answer

The perimeter of the equilateral triangle with side length 1.75x - 2 is 5.25x - 6.

What is Perimeter?

Perimeter of a geometrical shape is defined as the total boundary length. The perimeter of a shape can be calculated by adding the length of all the sides.

Perimeter of regular shape can be calculated by multiplying the length of the side with the total number of sides since a regular shape has all sides equal.

Here, we have an equilateral triangle with length of a side = 1.75x - 2.

Equilateral triangle is a regular shape, with all it's sides are equal.

Perimeter of an equilateral triangle with side length x is 3x.

Therefore,

Perimeter of this triangle = 3 ( 1.75x - 2 )

By distributive property, a (b + c) = ab + ac.

Perimeter = (3 × 1.75x) - (3 × 2)

                = 5.25x - 6

Hence the perimeter of the equilateral triangle shown is  1.75x - 2.

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Select the expressions that are equivalent to 12n – 8. Select all that apply.
A. 3n + 4 + 3n + 4 + 4n
B. 11n + 4 + n –12
C. 6(6n – 2)
D. 4(3n – 2)
E. 4n + 22 – 12 + 8n

Answers

Answer:

B and D

Step-by-step explanation:

B= 4(3n-2)

D=12n-8 which equals 4(3n-2)

Option B 11n + 4 + n –12 and D 4(3n – 2) are the expressions that are equivalent to 12n-8.

What are equivalent expressions?

Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions. To derive equivalent expressions of some expressions, we can either make it look more complex or simple. Usually, we simplify it.

We are given an expression as; 12n – 8.

A. 3n + 4 + 3n + 4 + 4n

= 3n+3n+4n+4+4

=10n+8

B. 11n + 4 + n –12

=11n+n+4-12

=12n-8

C. 6(6n – 2)

=36n-12

D. 4(3n – 2)

=12n-8

E. 4n + 22 – 12 + 8n

=4n+8n+22-12

=12n+10

Therefore, Option B 11n + 4 + n –12 and D 4(3n – 2) are the expressions that are equivalent to 12n-8.

Learn more about expression here;

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Solve for x:

2x+8=11x+25

Answers

Answer

x=1.8 or 1 1/8

Step-by-step explanation:

Need help 11 points
There is a string of red and blue lights blink ever 5 seconds, and the blue lights
Blink every 5 seconds. How many times will they blink at the same time in one minute

Answers

Answer: 6 times

Step-by-step explanation:

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