Mathematics Middle School

Problem:
Five times the difference of a number and four is the same as twelve less than the product of four and the same number.

Question:
Write an equation to find the unknown number.

Answers

Answer 1
5(n-4)=(4n-12)

First: Distribute 5 into n and -4.
5(n-4)=(5n)+(5*-4)= 5n-20.

Second: Subtract 4n from both sides to eliminate the variable from the right side of the equation.

(5n-20)=(4n-12)

n-20=-12

Next: Add 20 to both sides to eliminate the constant from the left side of the equation.

n-20=-12

n=8

The unknown number is 8.
Answer 2
N=8 because 5(4n-12)=4n-12, start by subtracting 4n from both sides.

Related Questions

Make a number line and show all values of x. x≤2 and x< -5

Answers

Answer:

X<-5

Step-by-step explanation:

X has to be <-5 and <=2

If you draw a number line, you can see clearly that - 5 become first than 2.

If the condition is that it has x≤2 and x< -5, you don't take the values between - 5 and 2, cause the 2nd condition makes the result ]-infinity;-5[

I don’t know the answer but I need the points I’m sorry

What is the theoretical probability that the family has two dogs or two cats?

Answers

Answer:

The theoretical probability i that the has two cats ot two dogs is 50%

2⁄3 + 1⁄6 + 2⁄8 = ??

Answers

Answer:

a

Step-by-step explanation:

use ur brain

Answer:

I whole 1/12

Step-by-step explanation:

2/3+1/6+2/8

= 16/24+4/24+6/24 = 26/24 = 1 whole 2/24

= I whole 1/12

( I hope this was helpful) >;D

steven feeds his rabbit 2.4 pounds of food each week. How many weeks will a bag of food last. pls give a good explanation and also the rabbit food bag is 8.4

Answers

3 and a half weeks!

Ayo another question coming up, but this is the big bang in points!

Please help me with this 20pts

Answers

Whats the question? Ill answer in comments when i find out

What is the value of x?

Enter your answer in the box.

x =

Answers

Answer:

The answer will be like this

X =20

A salesman sells a car for $37,000 and earns 8.5% commission. How much commission does he earn?

Answers

Answer:

4,352 dollars

Step-by-step explanation:

The amount of commission that the salesman earned is $3145.

What is Percentage?

Percentage is defined as the parts of a number per fraction of 100. We have to divide a number with it's whole and then multiply with 100 to calculate the percentage of any number.

Percentage is usually denoted by the symbol '%'.

Given that,

Selling price of the car = $37,000

Percent of commission earned = 8.5%

Amount of commission earned = 8.5% × $37,000

                                                    = (8.5 / 100) × $37,000

                                                    = 0.085 × $37,000

                                                    = $3145

Hence the commission earned is $3145.

Learn more about Percentage here :

https://brainly.com/question/29086621

#SPJ3

This is math can u guys help me with this plss if you have ay questions ask me in the question comment section i just need these two question pls help if you know 8th grade math pls help

Answers

So this may not be correct but I tried so here’s my thought process

1. x - 2y = 3
2. 3x + 2y = 8
3. 2x + 3y = 13
4. 2x - 3y = 19

1. X = 9 Y = 3
2. X = 2 Y = 1
3. X = 2 Y = 3
4. X = 17 Y = 5

The question are vague enough to where anything can be put as x and y. These are just some of those results so do take this with a grain of salt. Good luck?

Write six and five hundredths in decimal form.

Answers

6.05 is six and five hundredths in decimal form.

Answer:

5 hundredths: 0.05

6 hundredths: 0.06

Step-by-step explanation:

um does anyone know the answer

Answers

answer is -8.4. welcome

GIVING BRAINLY
Find the value of the following expression:

(28 ⋅ 5−5 ⋅ 190)−2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 228 (5 points)

Write your answer in simplified form. Show all of your steps.

Answers

Answer:

(5^32 / 2^76) * 2^28 = 5^32 / 2^48

Step-by-step explanation:

(2^8 . 5^-5 . 19^0)^-2

using PEMDAS

this = (2^8 * 1/5^5 * 1)^-2

=  (5^5 / 2^8)^2

= 5^10 / 2^16

GIVING THANKS AND BRAINLIEST FOR BEST ANSWER <3
::::::::

Answers

Lol it is me.again



B

helpme please i dont understand this

Answers

Answer: Distributive, Associative, Commutative, Distributive

Step-by-step explanation: you are asking for the second one. It is the associative property like I mentioned earlier because you are moving the paranthesis (only applies for multiplication and addition) and therefore associating the terms of the problem together

Answer:

1. Distributive Property

2. Commutative Property

3. Associative Property

4. Distributive Property

Sorry if any of these are wrong!

What is the total surface area of the square pyramid in square inches?

Answers

Answer:

Calculated out this gives a surface area of 138.528 Square Inches.

Step-by-step explanation:

i think p hope its right -w-

I got 357

find the area of the square: 49 bc squares have equal sides

then find the area of the triangle: 77 (7x11) then multiply it by 4 bc there r 4 triangles (308)

add them and u get 357

A cookie jar contains 6 sugar cookies, 4 lemon cookies, and 2 chocolate cookies. Anne randomly chooses 1 sugar cookie from the jar, replaces it, then chooses a chocolate cookie.

1/11

1/12

8/23

1/3

Answers

Answer:

B. 1/12

Step-by-step explanation:

If you wouldn't mind giving me brainliest, i'm just trying to rank up.

HELP FAST. I WILL CASHAPP $5

On a certain hot​ summer's day, 540 people used the public swimming pool. The daily prices are $1.25 for children and $2.00 for adults. The receipts for admission totaled $822.75. How many children and how many adults swam at the public pool that​ day?

Answers

366 children and 388 adults at the pool
388 and 366
adults children

When finding the unit rate, the words per and each tell us what unit of measure needs to equal ONE. True or False

Answers

Answer:

true

Step-by-step explanation:

There is a guitar that originally costs $249.99. It is on sale for 15% off. You also have to pay 6% sales tax. How much will you pay for the guitar?

Answers

After the discount and sales tax you pay 225.24
You’d pay $225.24 after the discount and tax

PLS PSLS HELP HELP !

Answers

I’m pretty sure it is B

What is the slope of the line through the points (2, 5) and (6, 13)?

Answers

Answer:

The slope of the line that passes through that point is 2.

Step-by-step explanation:

plz mark me brainliest

Answer:

2 is the answer of the question

Russell is filling a cylinder-shaped swimming pool that has a diameter of 20 feet. He fills it with water to a depth of 3 feet. What is the volume of the water in the pool, to the nearest cubic foot?
377 cubic feet

942 cubic feet

2958 cubic feet

3768 cubic feet

Answers

Answer:

V = 942.6 (or if rounded 942) cubic feet

The answer is 942 cubic feet

Rewrite without absolute value for the given conditions:
1. y=|x-5|+|x+5|, if x<-5
2. y=|x-5|+|x+5|, if -5

Answers

1) |5-5|+|5+5|= |0|+|10|= 0+10= 0
2) |-5-5|+|-5+5|= |-10|+|0|= -10+0= -10

5-5| + |5+5| = 0+10=10

When 300 apple trees are planter per acre, the annual yield is 1.6 bushels of apples per tree. For every 20 additional apple trees planted, the yield reduced by 0.01 bushel per tree. How many apple trees should be planted to maximize the annual yield

Answers

700 ffhgftgcfgfdfcc.

Answer:

700

Step-by-step explanation:

mark me brainlist!

Look at the stem-and-leaf plot. How many numbers in the stem-and-leaf plot are greater than 110? A. 2 B. 8 C. 10 D. 11

Answers

Answer:

The answer is C.

Step-by-step explanation:

If you look at the Key 9/7 = 97 you see that the third row the first number is 112 which is greater than 110. After that all those numbers are greater than 110.

  Total numbers given in the stem-and-leaf plot are 18, out of which 10 numbers are greater than 110.

  Hence, Option (C) will be the correct option.

How to analyze a stem-and-leaf plot:Key of any stem-and-leaf plot is self explanatory.

       Example: A number 97 will be written as 9 | 7

So the numbers given in the stem-and-leaf plot are,

94, 97

100, 100, 100, 103, 106, 109

112, 112, 115, 118

121, 124, 127, 127

130, 132

Now we have to identify the numbers greater than 110.

So the numbers greater than 110 will be,

112, 112, 115, 118

121, 124, 127, 127

130, 132

   Hence, total numbers greater than 110 are 10. Option (C) will be the correct option.

Learn more about the stem-and-leaf plot here,

https://brainly.com/question/16672890?referrer=searchResults

I WILL GIVE YOU BRAINLEST IF YOU ANSWER IT RIGHT IN 5 MINUTES!!!!!!! 20 POINTS!!
Which statement is correct?
A) 3.56x10^2/ 1.09x10^4 equal or less than< (4.08x10^2)(1.95x10^-6)
B) 3.56x10^2/ 1.09x10^4 < less than (4.08x10^2)(1.95x10^-6)
C) 3.56x10^2/ 1.09x10^4 > more than (4.08x10^2)(1.95x10^-6)
D) 3.56x10^2/ 1.09x10^4 = equal (4.08x10^2)(1.95x10^-6)
I couldn't put the underline on the first problem but I wrote it out what it is suppose to be.

Answers

Answer: A

Step-by-step explanation: plz mark me brainliest

Answer:

Step-by-step explanation:

(b)(1), .. 3.56x10-4 ... 2.26x10-1 ± 1.09x10-2 Bq/L (6.11x100 ± 2.95x10-1 ... 4.08x10-3 ... 1.95x10-2.

Answer correct please

Answers

The answer is B, trust im a math teacher :p
The answer is b it’s correct

you are given 2 supplementary angles.one has a measure of 4x and the other has a measure of 8x. what is x?

Answers

Answer:

x=15

Step-by-step explanation:

Supplementary angles are two angles that equal the sum of 180 degrees.

Take 4x and 8x and make it equal to 180

4x+8x=180

Add like terms:

12x=180

Divide:

x=15

To check:

Plug in 15 to both expressions

4(15)=60

8(15)=120

Add them up and they equal 180 degrees

Hope this helps! :)

x=15 kiddo djdidn edmonds did d did disks disk did die dish s says ab

HELP PLEASE, I'LL GIVE BRAINLIEST (I think I spelled that wrong)

Answers

Answer:

the answer is 32

Step-by-step explanation:

the sum of angles in a triangle is 180° and if we subtract 116 from that we get 64. now since the sides of the triangle are the same we need to divide 64 with 2 and we get 32

Answer:

32 degrees

Step-by-step explanation:

So, based on the side lengths, the triangle is isosceles since two of the sides are of equal length. So, in isosceles triangles the two base angles are congruent. If there are 180 degrees in a triangle, then 180-116 would be the sum of the remaining base angles in the triangle.

180-116=64

So, divide 64 by 2 since the two angles are equal and have a sum of 64

So, x would be 32 degrees

PLEASE HURRYYYY ITS DUE SOON

Answers

It’s the third one 9(5+1)

As 9 x 5 = 45
9x 1 = 9

Answer:

The third answer 9(5+1)

Step-by-step explanation:

The expressions are equivilant.

What is the horizontal or vertical distance between the points (4 -11) and (15, -11)?


A. vertical distance of 19 units

A. vertical distance of 19 units


B.horizontal distance of 0 units

B. horizontal distance of 0 units


C. horizontal distance of 11 units

C. horizontal distance of 11 units


D.vertical distance of 11 units

D. vertical distance of 11 units

Answers

The answer should be D
The answer should be D
Other Questions
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