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Masteriza [31]
3 years ago
13

you go shopping and buy x shirts for $12 and y jeans for $28 the total spent is $84 write an equation in standard form that repr

esents this model
Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

84= 12x + 28y

Step-by-step explanation:

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Please help will give brainliest 7
labwork [276]

Answer:

Step-by-step explanation:

You are now a teacher, and you notice that many of your students are consistently making the dividing-out mistake that appears below. Some of the students even admit to knowing the method was wrong as soon as you point it out.

Create a visual to help your students stop making this common mistake: fraction numerator up diagonal strike x squared plus 3 x − 4 over denominator up diagonal strike x squared − 2 x − 8 end fraction .

Your lesson should do the following:

Explain why the dividing-out method is incorrect. You may want to start with a simpler expression and work your way up to polynomials. (For example, compare fraction numerator 3 left parenthesis 5 right parenthesis over denominator 3 end fraction and fraction numerator 3 plus 5 over denominator 3 end fraction.)

Explain when you can cancel a number that is in both the numerator and denominator and when you cannot cancel out numbers that appear in both the numerator and the denominator.

Share tricks, reminders, memory devices, or other methods to help students catch themselves before making this common mistake.

Post your video or series of images. Post answers to the following questions:

A. Why do you think the mistake shown here is such a common one?

B. Have you ever made this mistake before? What helped you stop making this mistake? What will help you stop making this mistake in the future?

Read and comment on the explanations of other student “teachers.”

A. Comment on ideas that helped you better understand or tricks to help you catch yourself before making the dividing-out mistake.

B. Ask a question to help a student improve his or her explanation or make it more thorough.

Respond to replies to your post.

Be sure to check back regularly to participate in the discussion with your fellow students and teacher.

P.S. I can not see pictures or videos that are posted on here, so if you could write everything out it would be kindly appreciated. :)

4 0
3 years ago
Compare the following: Size of a plant cell to thickness of a piece of paper​
dimulka [17.4K]

Since you like to steal points instead of actually helping people who need it the most you don't get an answer.

4 0
2 years ago
Please Help ASAP with Math
vampirchik [111]

Answer:

5.33

Step-by-step explanation:

move the 4 out of the summation because  just a constant multiplier

4 *sum from 1 to 10 for (1/4)^(n-1)   [sorry i don't know how to write sums using latex)

The formula for the geometric sum is :

First term*(1-multiplier^n)/(1-multiplier), formally \frac{a_1(1-r^n)}{1-r}

Here multiplier is 1/4

First term is (1/4)^(1-1) = 1

Thus the value of sum is 1*(1-(1/4)^1^0)/(1-1/4)which equals (1- (1/4)^1^0)*4/3

We factored out 4 so its 4*(1-(1/4)^1^0)*4/3 which is 16/3 * (1- (1/4)^1^0)

This equals 5.333328247 which is 5.33 to the nearest hundredth

5 0
2 years ago
What is the total number of atoms in the the compound? <br><br> A. 5<br> B. 6<br> C. 7<br> D. 8
JulijaS [17]

Answer:

8

Step-by-step explanation:

what is the total number of atoms in the compound click here

7 0
3 years ago
Which system of linear inequalities is represented by the
Ulleksa [173]

Answer:

first choice: y≥1/3 x+3 and 3x-y>2

Step-by-step explanation:

7 0
3 years ago
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