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vova2212 [387]
3 years ago
14

Pls help! Error Analysis problem

Mathematics
2 answers:
Gennadij [26K]3 years ago
7 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

charle [14.2K]3 years ago
6 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

From line 2 to 3, on the left side, ana <u>added</u> 2 and 3 but completely ignored the - in front of the 3. the correct answer would have been<u> -x - 21 = 3x + 19</u>

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3 years ago
Is 4,800 milliliters equal, less than, or more than 4.2 liters?​
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An elevator can hold a maximum of 1500 pounds. An average child weighs 75 pounds and the average adult weighs 150 pounds. The el
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<u>Let's take this problem step-by-step</u>:

<u>Let's first set up some variables</u>:

  • c: # of children
  • a: # of adults

<u>Let's examine the information given:</u>

  • Elevator can hold a maximum of 1500 pounds

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          ⇒ average adult is 150 pounds

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          ⇒ <em>therefore</em>: c + a \leq 14

<u>Let's graph the equations</u>:

 75c+150a\leq 1500\\c+a\leq 14

    ⇒ look at the image attached

<u>The point at which the two graphs intersect:</u>

  ⇒ <em>is the solution that represents the amount of children and adults and </em>

<em>       their combine weight</em>

<em />

<u><em>With the horizontal axis being the # of children and vertical axis being the # of adults</em></u><em>:</em>

<em>  ⇒ the </em><em>solution is 8 children and 6 adults</em>

<em></em>

<u>Answer: 8 children and 6 adults</u>

<u></u>

Hope that helped!

<em />

               

7 0
2 years ago
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Y=C+I+G+(X-M)

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c=consumer spending

I=investment

g=government spending

x-exports

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7 0
3 years ago
6.3c-2(1.5c+4.1) simplify
svp [43]
6.3c-2(1.5c+4.1)=6.3c-3c-8.2=3.3c-8.2 :))))

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