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Fynjy0 [20]
3 years ago
6

Carly wants to buy some notebooks that cost $3.50 each. She has $20 to spend. She set up this inequality to find out how many no

tebooks she can buy. 3.5n < 20 Which set of numbers represents all possible numbers of notebooks Carly could buy? A. {0, 1, 2, 3, 4} B. {0, 1, 2, 3, 4, 5} C. {0, 1, 2, 3, 4, 5, 6} D. {0, 1, 2, 3, 4, 5, 6, 7}
Mathematics
2 answers:
nlexa [21]3 years ago
6 0

Answer:

B. {0, 1, 2, 3, 4, 5}. Mark me Brainliest PLZ

Step-by-step explanation:

ankoles [38]3 years ago
4 0

Answer:

B.

Step-by-step explanation:

You have to use the number in the variable to figure out if the number multiplied by 3.5 goes over 20 dollars. The highest you can go without going over 20 dollars is 5 notebooks

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-17+ 1/4 x + 1/4 x + 31 = 24
wlad13 [49]
<h2><u>Answer:</u></h2><h2><u></u>\boxed{x=20}<u></u></h2><h2><u></u></h2><h2><u>Solution Steps:</u></h2>

______________________________

<h3>1.) Combine like terms:</h3>
  • \frac{1}{4}x+\frac{1}{4}x=\frac{1}{2}x

<em>  - We do this because we need 1 Number/Variable left over. </em>

<u>Equation at the end of Step 1:</u>

  • <u />-17+\frac{1}{2}x+31=24<u />

<em />

<h3>2.) Add −17 and 31:</h3>
  • -17+31=14

<em>  - We do this because we can only have 1 number on each side of the equals. (This doesn't count towards the number connected to the variable.)</em>

<u>Equation at the end of Step 2:</u>

  • <u />14+\frac{1}{2}x=24<u />

<h3>3.) Subtract 14 from both sides:</h3>
  • 14-14= Cancels Out
  • 24-14=10

<em>  - We do this because now we just need the 1 variable and the 1 number on opposite sides of the equal.</em>

<u>Equation at the end of Step 3:</u>

  • <u />\frac{1}{2}x=10<u />

<h3>4.) Multiply both sides by 2:</h3>
  • <em />\frac{1}{2}x<em> </em>× 2=x<em />
  • <em />10<em> </em>× 2=20

<em>  - We multiply by 2 since we have a fraction. In this case the reciprocal is 2 meaning we multiply by 2. </em>

<em></em>

______________________________

4 0
3 years ago
I need some tips and examples for subtracting integers. Appreciated!
Tcecarenko [31]

one tip:

Example: 4 - (-3)

it instantly becomes positive because the negatives are close to each other as shown.

hope that helps :)

5 0
3 years ago
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