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babunello [35]
3 years ago
11

A student is attempting to solve a multi-step equation. Sample mathematical work is shown below. Which statement best applies to

the sample mathematical work?
Given the equation , I must solve for m. I first subtract 8 from both sides, which gives me
−m/2
= -25/3. I then multiply both sides by –2, which gives me the final answer of m=50/3

A) The student incorrectly subtracted 8 from both sides.
B) The student incorrectly multiplied both sides by –2.
C) The final answer is not reduced or simplified.
D) The mathematical work shown is correct

Mathematics
1 answer:
Yakvenalex [24]3 years ago
3 0
I think the answer is c because it shows the final answer as a improper fraction so the final answer needs to be reduced or simplified.
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Answer:

<h2><em><u>D. 4/25</u></em></h2>

Step-by-step explanation:

As,

0.16

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6 0
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a mixture of peanuts and corn sells for P40 per kilo. The peanuts sell for P42 per kilo while the corn sells for P36 per kilo. h
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Answer:

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The weight of corns in the given mixture = 4 kg

Step-by-step explanation:

Let us assume the weight of peanuts in the mixture   = x kg

The weight if corns in the given mixture = y kg

Total weight = (x + y) kg

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Cost of per kg if mixture  = $ 40

So, the cost of (x + y) kg mixture  = (x+y) 40 = 40(x+ y)   ..... (2)

 

The cost of 1 kg of peanuts =  $ 42

So cost of x kg of peanuts  = 42 (x)  = 42 x

The cost of 1 kg of corns  = $ 36

So cost of y kg of corns  = 36 (y)  = 36 y

So, the total cost of x kg peanuts  + y kg corns =  42 x +  36 y  .... (3)

From (1) and (2), we get:

40(x+ y)  = 42 x +  36 y

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Put this in  40(x+ y)  = 42 x +  36 y

We get:

40(x+ 12 -x)  = 42 x +  36 (12 -x)

480 = 42 x + 432 - 36 x

or, 480 - 432 = 6 x

or, x  = 8

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5 0
3 years ago
a merchant gains 15% by selling an article for $ 150. by how much does he sell it to double his profit ?​
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Answer:

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8 0
3 years ago
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Answer:

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alukav5142 [94]

Answer:

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