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Andrews [41]
3 years ago
13

Toni attempted to solve an equation but made an error. What is her error, and which step did she make it in? 2x-3(1-x)+7= -5x st

ep 1. 2x -3 -3x+7= -5x step 2. -x(-3) +7 =-5x step 3. -x+4 =-5x plz help asap!! :)
Mathematics
2 answers:
jarptica [38.1K]3 years ago
4 0
In step 2 she made a mistake of not having a positive sign for 3x because if you multiply -3 and -x that would end up as +3x
Natalija [7]3 years ago
4 0

Answer:

The error is in step 1. −3 times −x is 3x, not −3x.

Step-by-step explanation:

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what is the difference between teh largest prime number less than 50 and the smalest composite number grater than 10
Slav-nsk [51]

Answer:

The answer is 35.

Step-by-step explanation:

Prime numbers that are less than 50 are --> 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

The largest prime number in here that is less than 50 is 47, right?

Lastly, the smallest composite number which is greater than 10 is what? It is 12, okay?

So, 47 - 12 = 35

6 0
2 years ago
Read 2 more answers
Please answer both question fully.
BARSIC [14]

Step-by-step explanation:

<h3>Part A</h3>

<u>Angle measures:</u>

  • a = x = z = 51° (as vertical angles and corresponding angles)
  • b = d = y = w = 180° - 51° = 129° (as supplementary angles and corresponding angles)
<h3>Part B</h3>

Supplementary angles for a linear pair and sum to 180°.

<u>Examples are:</u>

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2 years ago
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the largest of these five squares has side length 27 units, and each additional square's side length is 2/3 as large as the one
RoseWind [281]

The total area is 1289.41 units².

The total perimeter is 281.32 units.

<h3>What is the total area and perimeter?</h3>

The first step is to determine the side lengths of the other squares:

  • Length of the second square = 2/3 x 27 = 18
  • Length of the third square = 2/3 x18 = 12
  • Length of the fourth square = 2/3 x 12 = 8
  • Length of the fifth square = 2/3 x 8 = 5.33

Area of a square = length²

Perimeter of a square = 4 x length

  • Area of the first square = 27² = 729
  • Area of the second square = 18² = 324
  • Area of the first square = 12² = 144
  • Area of the first square = 8² = 64
  • Area of the first square = 5.33² = 28.41

Total area = sum of the areas of the 5 squares = 1289.41 units²

  • Perimeter of the first square = 4 x 27 = 108 units
  • Perimeter of the second square = 4 x 18 = 72
  • Perimeter of the third square = 4 x 12 = 48
  • Perimeter of the fourth square = 4 x 8 = 32
  • Perimeter of the fifth square = 4 x 5.33 = 21.32

Total perimeter = 281.32 units

To learn how a square, please check: brainly.com/question/9030544

#SPJ1

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You add them all together and you get 2221
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Write a proportion that could be used to solve for each variable. Then solve. 12 balls in 2 boxes 78 balls in x boxes
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If 12 balls fit in 2 boxes, 6 balls fit in 1 box.  78 / 6 = 13.  78 balls fit in 13 boxes.  x = 13. 
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