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Effectus [21]
3 years ago
15

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made.

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
6 0

Answer:

step 1 was wrong she should have added 25 to both sides

Step-by-step explanation:

step 3 was correct she divided both sides by -5

ivolga24 [154]3 years ago
3 0

Answer:

her mistake is in step 1

Step-by-step explanation:

she should have added 25 to each side

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natali 33 [55]

Answer:

The answer is 3 * 5 * 4

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3 years ago
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the average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?
Alex787 [66]

Answer:

20

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10 = 17

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6 0
3 years ago
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strojnjashka [21]
I hope this helps you



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4 0
4 years ago
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(-2,1) &amp; (1,-1) the equation of the line is
Aleonysh [2.5K]

Answer:

y = (-2/3)x - 1/3

Step-by-step explanation:

Find the equation of the line through the two points (-2, 1) and (1, -1).

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Thus, the slope of this line is m = rise / run = -2/3.

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1 = (-2/3)(-2) + b, or

1 = 4/3 + b, or 3/3 = 4/3 + b.

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7 0
3 years ago
The Venn diagram represents the results of a survey that asked participants whether they would want a bird or a fish as a pet.
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I got the answer right, I just took the test: (going from left to right)
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(Now going down the column)
Fish total= 25
Not fish total= 30

Total+Total= 55
6 0
3 years ago
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