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gogolik [260]
2 years ago
7

Which equation can be used to solve for x in the following diagram?

Mathematics
1 answer:
Kruka [31]2 years ago
4 0

Answer:

I'm answering this for points

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Write three equations whose solution is x=3.5
My name is Ann [436]

Answer:

  • 1. 2x + 23 = 30
  • 2. 3x + 19.5 = 30
  • 3. (10x - 20)/ 5 = 3

Explanation:

Work backward:

1. 2x + 23 = 30

Start:

  • x = 3.5

Multiply the equation by 2:

  • 2x = 2 (3.5)
  • 2x = 7

Subtract 30 from both sides

  • 2x - 30 = 7 - 30
  • 2x - 30 = -23

Add 23 and 30 to both sides:

  • 2x + 23 = 30

2. 3x + 19.5 = 30

Start:

  • x = 3.5

Add 6.5 to both sides:

  • x + 6.5 = 10

Multiply by 3:

  • 3(x + 6.5) = 30

Distributive property:

  • 3x + 19.5 = 30

3. (10x - 20)/ 5 = 3

Start:

  • x=3.5

Multiply by 10:

  • 10x = 35

Subtract 20:

  • 10x - 20 = 15

Divide by 5:

  • (10x - 20)/ 5 = 15/5

  • (10x - 20) / 5 = 3
3 0
3 years ago
A toy box has a volume of 30 cubic feet. It is 5 feet wide And 2 feet long. What is the height of the toy box
otez555 [7]
V = a * b * c
V = 30 
a = 5
b = 2 
c = ?
30 = 5*2*c
30 = 10*c
c = 30/10 = 3
c = 3
7 0
3 years ago
Read 2 more answers
Find the range.<br><br> 40, 35, 45, 55, 60<br><br> Range:
Tpy6a [65]
The range is 25
That’s the answer
4 0
2 years ago
Is 4√100 rational or irrational​
Deffense [45]

Answer:

Rational

Step-by-step explanation: it equals 40, and 40 is rational

3 0
2 years ago
If the original price was $19, and the item was reduced by 65%, what would the new price be.
givi [52]

Answer: 6.65

Step-by-step explanation:

19-(19×.65)

6 0
3 years ago
Read 2 more answers
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