In what grade do you learn this math equation? You don't have to solve, I'm just wondering

13t+6=12t+21

Answers

Answer 1

Answer:

I think in grade 6th or 7th I star it learning those types of equations

Answer 2
Maybe 8th or 7th grade I’m not sure

Related Questions

HEEEELLLPPPP PLLEEASSSEE!!! ASAP

Answers

the answer is y=3/4x and there’s no exact y intercept

i have some free things for yaaal​

Answers

1+1=

Step-by-step explanation:

what are the free things

pls give me brainliest

A line passes through (2, -1) and (4, 5).
-
Which answer is the equation of the line?
-3x+y=17
-3. + 5y = -13
-3x+y=-7
-3x+5y=13

Answers

Answer:

its c

Step-by-step explanation:

Find the median and mode of the following data:
a) 5, 9, 3, 4, 9, 2, 1, 3, 6.
b) 60, 67, 62, 61, 63, 65, 64, 68, 60.

Answers

A is 4 and b is 63 have a good day
A) To find the median list the numbers in ascending order. (1, 2, 3, 3, 4, 5, 6, 9, 9) The middle number is the median. So the answer is 4.
The mode is the number that appears the most which is 3 and 9 because they both appear twice.
B) (60, 60, 61, 62, 63, 64, 65, 67, 68) The middle number is 63 so that is the median.
The mode is 60 as it appears the most in the list.
Pls give me the brainliest!

At Store A, a game system sells for $150.The same system sells for $175 at Store B.Use a ratio to compare the price at Store A to the price at Store B.

Answers

Answer:

6:7

Step-by-step explanation:

=store A:store B

=150:175

=6:7

0.69 is an integer true or false

Help I have no idea what to do

Answers

Answer:

false

Step-by-step explanation:

An integer is a whole number and 0.69 is not a whole number.

A football team caught the ball in 60% of the
plays during a game. Based on this information, if
the team caught the ball in 15 plays, how many
total plays did the team have?

Answers

Answer: 25 Plays Total.

60% of 25 is 15

10% of 25 = 2.5

2.5x6=15

Hope This Helps.

I NEED HELP
Find the value

Answers

Answer:

7 and 2?

Step-by-step explanation:

i think because f(2) : f(x)= 5+2x = 7

Sophia and her brother combined to read a total of 40 books over the summer. Sophia read four times as many books as her brother. How many books did each person read? show work please​

Answers

Answer:

Sophia read 32 books and her brother read 8

Step-by-step explanation:

Represent Sophia as 4x and her brother as x

4x + x = 40

5x = 40

x = 8

Therefore, her brother read 8 books and Sophia read 32 books

You want to make sugar cookies and chocolate chip cookies. You have only one dozen eggs and 20 cups of flour. For each batch of sugar cookies you need 1 egg and 2 cups of flour, for chocolate chip cookies you need 2 eggs and 2 cups of flour per batch. You know you need to make at least 3 batches of sugar cookies. How many of each type should they make to get the best profit?​

Answers

Answer:

check online for more information

The sum of two numbers is 80
their difference is 38.
The product of these 2 numbers is __?

Answers

1239

hope this helps

Reposting this question because of the bots sending links

Answers

GHL LIH GLH my friend has been working



100 inches = 254 centimeters
Use the conversion above to answer the following questions,
A pencil measures 10 inches, How many centimeters is the pencil?
The pencil measures
centimeters

Answers

Answer:

A pencil is about 19 centimeters long

Answer:

if 100 inches=254 centimeters

then 10 inches=x

100x=2540

x=2540/100

x=25.4 centimeters

What is the 2nd equivalent fraction to 5/7

Answers

Hello!

2nd equivalent fraction to is 5/7 is 10/14.

Other equivalent fractions are 15/21, 20/28, 50,70...

I hope this helps,

Have a great day!

The following function represents the value of a car, in dollars, after x years: f(x) = 24,000(0. 92)x What does 0. 92 represent? The present value of the car The value of the car after x years The decrease in the value of the car, which is 92% The decrease in the value of the car, which is 8%.

Answers

0.92 represents the decrease in the value of the car which is 8% and this can be determined by using the given data.

Given :

The given function represents the value of a car, in dollars, after x years.[tex]f(x)=24000(0.92)x[/tex]

The following steps can be used in order to determine what does 0.92 represents:

Step 1 - Write the given function.

[tex]f(x)=24000(0.92)x[/tex]

Step 2 - In the given function $24000 represents the original value of the car.

Step 3 - According to the given data, 'x' represents the number of years.

Step 4 - Also in the given function, '0.92' represents the decrease in the value of the car which is 8%.

Therefore, the correct option is D).

For more information, refer to the link given below:

https://brainly.com/question/5245372

The five-number summary of a data set is given below.
Minimum: 3
Q1:12
Median: 15
Q3: 16
Maximum: 20
Which of the following is the IQR for this distribution?
1
3

4
5

Answers

Answer:

127 is the IQR.

Step-by-step explanation:

C: 4

IQR (interquartile range) can be found by subracting Q1 from Q3 (Q3 - Q1)

Reposting because Katie from the Brainly staff seems to think simple subtraction is a violation of community guidelines ¯\_(ツ)_/¯



Find the Principal:
$65 interest
2% interest rate
9 months

Answers

Answer: P = 36.11111

Step-by-step explanation:

Formula: P = I / (RT)

65 / (.02*9)

(.02 is the decimal form of 2%)

65 / 1.8 = 36.111111111

P = 36.111111 (Unsimplified answer)

Correct me if it is incorrect.

(PLS HELP FAST FOR 20 points) one step equation 18 + x = -9

Answers

Answer:

-27

Step-by-step explanation:

18 + x = -9

subtract by 18 on both sides

x = -27

You can check this by...

18 - 27 = -9

I hope this helps!!

this is your answer hope it's helpful for you

what is 100 over 2 simplifided

Answers

Answer:

50

Step-by-step explanation:

Simplify
8(x+3)²/2(x + 3)

Answers

Answer:

4x+12

Step-by-step explanation:

4(x+3)²/x+3=4x+12

I WILL GIVE 30 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT

Answers

Answer:

11

Step-by-step explanation:

Givens:

AD = 8

AC = 4y - 28

y = ?

First we can see that AD and DC are equal.

-note AD and AC are not equal

But 2 times the length of AD should give you AC so.....

2 x length of AD = 16 = AC

We can use the equation:

16 = 4y - 28

Solve for y

16 + 28 = 4y

44 = 4y

y = 11

Therefore value of y is 11.

Suppose you know the area of the yard is 7,500 square feet. How can you find the value of a?


—help and it comes with a picture

Answers

Answer:

a = 50

Step-by-step explanation:

From the introduction, you know that the area is 3a^2

You also know that it is 7500 square feet. \

So the two must be equal

3a^2 = 7500                    Divide by 3

a^2 = 7500/3

a^2 = 2500

The square root of 2500 is 50

sqrt(a^2) = sqrt(2500)

a = 50

A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 6% vinegar, and the second brand contains 11% vinegar. The chef wants to make 380 milliliters of a dressing that is 7% vinegar. How much of each brand should she use?

Answers

Answer: To make a 310mL mixture that contains 8% vinegar, use 186mL of the first brand and 124mL of the second brand.

Step-by-step explanation:We want the total mixture to be 310mL so: F + S = 310

 

Also, you want the total mixture to contain 8% vinegar so: .06F + .11S = .08(310)

 

Now, we can solve the system of equations using substitution.

 

F + S = 310

.06F + .11S = .08(310)

 

F = 310 - S      [solve 1st equation for F]

.06(310 - S) + .11S = .08(310)     [substitute into 2nd equation]

18.6 -.06S +.11S = 24.8

.05S = 6.2

S = 124

 

F + 124 = 310     [substitute answer for S back into original equation]

F = 186

 

if the discriminant is negative how many solutions are there

Answers

Answer:

Two solutions.

Step-by-step explanation:

Pls help brainiest to the correct answer!

Answers

Answer:

a) 9, b) 87, c) - 2, d) - 9

Step-by-step explanation:

a) - 2 * (- 4.5) = 9b) (- 8.7) * (- 10) = 87c) (- 7) * (-2) = 14d) (- 9) * (- 10) = 90

#a

[tex]\\ \sf{:}\dashrightarrow -2(-4.5)=9.0[/tex]

#b

[tex]\\ \sf{:}\dashrightarrow (-8.7)(-10)=8.7[/tex]

#c

[tex]\\ \sf{:}\dashrightarrow (-7)(-2)=14[/tex]

#d

[tex]\\ \sf{:}\dashrightarrow (-9)(-10)=90[/tex]

Please help look at the picture below

Answers

Answer:

I’m sorry I don’t know

Step-by-step explanation:

☹️☹️☹️☹️☹️

Solve for m. 81m2 = 36

Answers

Step-by-step explanation:

81m2 = 36

m2 = 36/81

m2 = 4/9

Square root on both sides

m = 2/3

Answer:

Step-by-step explanation:

i hope this help have a great day!

Meriel works in a lab and needs to measure 7.5 grams of a substance with a percent error of less than
5%. What is the smallest and largest amount they can measure to stay under this percent error?

Answers

Answer:

Step-by-step explanation:

A common way of measuring the mass of objects is to use balance scales. A balance scale works by placing the object you want to weigh on one side and adding gram masses to the other side until the scales are level. Masses for weighing usually come as 1 g, 5 g, 10 g, 20 g or more!

Please help meeeeeeee! Gratefully appreciate it, happy holidays!

Answers

Answer:

x = 50

Step-by-step explanation:

180-(50+80)=x

180-130=50

omg please help for brainlist !!!!!!!!!!!!!!!!!!!

Answers

Answer:

f(x) is linear

g(x) is exponential

Step-by-step explanation:

A linear function will always have the same rate of change between equally distant points, while an exponential function will have an increasingly large rate of change between equally distant points.

First, look at f(x). All these points are equally distant at 2 units apart on the x-axis, so they can be directly compared:

[tex](-38)-(-18)=-20\\(-58)-(-38)=-20\\(-78)-(-58)=-20[/tex]

All of these points are the same distance apart on the y, so f(x) must be a linear function.

Now look at g(x). These are also all equally distant at only 1 unit apart.

[tex]30-10=20\\90-30=60\\270-90=180[/tex]

These are very clearly not the same distance apart on the y, so g(x) must be the exponential function.

Other Questions
in which time period did the first animals that could live both in water and on land appear Think about the Article. How are the Dead Sea Scrolls and theCopper Scroll different?A. The Dead Sea Scrolls are lists of treasures, but the CopperScroll was a mostly religious text.B. The Dead Sea Scrolls were opened with saws, but theCopper Scroll was opened with a drill.c. The Dead Sea Scrolls were found in caves, while theCopper Scroll was found in Jerusalem.D. The Dead Sea Scrolls were mostly religious texts, but theCopper Scroll was a treasure map.10:28 Malia bought shell beads and glass beads to weave into designs in her baskets. She bought 1/4 pound of shell beads and 3/8 pound of glass beads. How many pounds of beads did she buy? help i dont know how to do the rest of this homework What are the three main elements of an effective introduction for an informative essay?A-the hook,supporting evidence, and examplesB- transitions,examples,and thesis statement C- the hook, background information, and supporting evidence D-background information,examples,and supporting evidence Hey yall please help me ASAP. The volume of a rectangular prism is 2x^3 - 6x^2 + 8x , and the volume of a cube is 27x^3. What is the total volume of the prism and the cube? would it be C? read the story and choose the title that best fits the focus of the narrative. describe the atomic models above in terms of a. location of nucleusb.location of electrons Imagine it's the middle of January, and people are thinking about Valentine's Day. What will happen in the market for fresh flowers? Use supply and demand analysis in your explanation (Hint: What happens to demand and/or supply? What happens to the equilibrium price and equilibrium quantity?) I will give brainliest!Arwen created a copy of a certain line segment. What do you know is true about these two line segments?1. The measure of the original line segment will be twice the measure of the copy.2. The measure of the original line segment will be half the measure of the copy.3. The endpoints will have the same letters.4. They are congruent. Which statement best describes how the connotation of the word commotionaffects the passage's meaning?Maria put down the map and stared at the bungalow. It was definitelymuch smaller than she thought it would be, but it held a certain kind ofsimple charm. The commotion of the city would be far behind her now.O A. The connotation indicates that Maria is happy to be out of the city.O B. The connotation reinforces the idea that Maria has never left thecity before.O C. The connotation reveals that Maria will miss the activity of thecityO D. The connotation suggests Maria already finds rural life boring. 1. Convert 36 inches into feet. A. 3.5 ft B. B. 3 ft C. 2.5 ft D. 2 ft Plsssssssssss helppppppp Determine whether each figure creates the conditions to form a unique triangle, more than one triangle, or no triangle.. 8 cm along the left side of the triangle and 45 degrees in the lower left of the triangle.... more than one trianglea unique triangleno triangle the process of back propagation is most closely associated with: Three times the sum of a number and 7 is equivalent to 57. Imagine a novel about a voyage across the ocean in the olden days. The authors purpose is to show how ferocious the sea can be and what a dangerous adventure it was to sail across the ocean. Which way of describing the setting would BEST advance the authors purpose?. You have set a closing date with a password. Can your client make changes and if so, how would you track any changes to transactions within the closed period?. An item is regularly priced at $97. It is now priced at a discount of 40% off the regular price.