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jasenka [17]
3 years ago
7

How can bar diagrams be used to model numerical expressions

Mathematics
2 answers:
Aleks [24]3 years ago
8 0
They can be used by giving examples

N76 [4]3 years ago
7 0

Answer:

Word problems often produce a great amount of anxiety for students.

Bar diagrams clearly align with the four-step problem-solving plan.

• Students create a visual representation to demonstrate a clear understanding of  the problem.

  • The bar diagram requires students to identify the problem’s setting and the  values associated with the situation.

  • The completed bar diagram leads to a definitive solution plan.

  • The bar diagram can be used as a visual clue to determine the reasonableness of  the solution.

Combined with the values provided in the problem, a solution plan is revealed. After  solving the problem, the bar diagram can be used to check the solution by substituting the value into the  drawing and using logical reasoning to assess reasonableness.

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A committee of four students is being randomly selected from a group of twenty students. How many combinations of four students
Cloud [144]

Answer:

4,845

Step-by-step explanation:

Hope this helps:)

7 0
2 years ago
URGENT DUE BY 1:00 FOR MY FINAL GRADE PLEASE HELP OR I WILL FAIL SEMESTER WILL RATE GOOD THX BLESS YOU!!!!
Lesechka [4]
F(x) = 3x + 11
Is the function used to show this.

when you know this, you are able to do the following:
f(10) = 30 + 11 = $41
That would be the allowance of the 10th week.

The question, however wants the total.

This again, can be done like this:
f(1) + f(2) + f(3) + f(4) + f(5) + f(6) + f(7) + f(8) + f(9) + f(10) = $275 :)
14 + 17 + 20 + 23 + 26 + 29 + 32 + 35 + 38 + 41 = $275

Sure there is a better formula, but i couldnt seem to make it, sorry.

HUGE UPDATE: The sum is $275 not 200..


3 0
3 years ago
Read 2 more answers
Don't understand please help with answer
Taya2010 [7]
((-4)^5)^8 / ((-4)^7)^3

= (-4)^40 / (-4)^21

= (-4)^20
4 0
3 years ago
Read 2 more answers
Which are factors of x2 – 4x – 5? Select two options. (x – 5) (x – 4) (x – 2) (x 1) (x 5).
Greeley [361]

Answer:

(x - 5) (x + 1)

Step-by-step explanation:

x² - 4x - 5

= x² + x - 5x - 5

= x(x + 1) - 5(x + 1)

= (x - 5) (x + 1)

5 0
2 years ago
Read 2 more answers
Math plzzz helppp.due today!!!!will mark brainliest
mario62 [17]

Answer:

I think that's right. I checked my answer and proved it on that sheet.

8 0
3 years ago
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