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zhuklara [117]
3 years ago
12

(Can Someone PLEASE Help me) Which of the following steps in this proof contains a flaw?

Mathematics
1 answer:
Vladimir79 [104]3 years ago
7 0
Step 3. It lost track of one power of a on the left side. 

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Pls pls pls pls answer RIGHT
Korolek [52]

Answer:

2nd one i think

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Stock worth $80 a share dropped in value by 15% on Tuesday, then increased by $7 the next Wednesday and, finally, increased by 1
Nutka1998 [239]
<h2>Steps</h2>

So here are a couple expressions when a value changes by percentage (p = percentage in decimal form and m = original value):

  • When <em>decrease</em>: (1 - p)m
  • When <em>increase</em>: (1 + p)m

So firstly, the $80 share dropped by 15%. Since this is a <em>decrease</em>, follow the appropriate expression:

15\%=0.15\\\\(1-0.15)*80\\0.85*80\\68

<em>On Tuesday, the share went from $80 to $68</em>

Next, on Wednesday the share increased by $7. With this, just add $68 and 7.

68+7=75

<em>On Wednesday, the share went from $68 to $75</em>

Lastly, on Thursday the share increased by 12%. Since this is an <em>increase</em>, follow the appropriate expression:

12\%=0.12\\\\(1+0.12)*75\\1.12*75\\84

<h2>Answer</h2>

<u>The final price of the share is $84.</u>

7 0
3 years ago
What is 4/7 + 2/7 in simplest form
Arada [10]
\frac{2}{7} +\frac{4}{7}\\&#10;\frac{2+4}{7}\\&#10;\frac{6}{7}
Your answer is \frac{6}{7}
3 0
3 years ago
Zack has a old car. He wants to sell it for 60% off the current price. The market price is $500. How much money would he receive
oksano4ka [1.4K]
Since it would be 60% of the original price which is 500 it would have be $300
5 0
3 years ago
Read 2 more answers
Quick help!!! Also pls show work!
Rasek [7]

Answer:

10a. No

10b. No

10c. Yes

10d. Yes

Step-by-step explanation:

10a. This equation does not because 3/4 x 8 = 6 and not 9.

10b. This equation doesn’t because 3x8 does not equal 28.

10c. This equation does because 5 x 8 = 40 which means y = 8.

10d. This equation does because 8/2 = 4. Fractions are just division problems and 8 divided by 2 equals 4, meaning y = 8 was n this equation.

8 0
2 years ago
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