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sesenic [268]
3 years ago
6

First find the surface area of the triangular prism

Mathematics
1 answer:
ohaa [14]3 years ago
7 0

Answer:

Front, 60, back 60, right, 30, left, 30. And the triangle's surface area is 15 + 15 = 30, And 20 / 2 = 10. SO the surface area is 190 cm^2

Step-by-step explanation:

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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
5 more then 3 times a number is 26 what is the number​
a_sh-v [17]
Let x equal a number
3x + 5 = 26
3x = 21
x = 7

the number is 7!
3 0
2 years ago
Read 2 more answers
I am thinking of two numbers. The sum of the two is 10 and the difference is 2
mixer [17]

Answer:

4 and 6

Step-by-step explanation:

First, let's find all the pairs that add up to 10.

  • 1 + 9, 2 + 8, 3 + 7, 4 + 6, and 5 + 5

Next, we find the difference between the addends for each pair.

  • 9 - 1 = 8
  • 8 - 2 = 6
  • 7 - 3 = 4
  • 6 - 4 = 2
  • 5 - 5 = 0

As you can, see the numbers that add to 10 and have a different of 2 is 4 and 6.

5 0
2 years ago
Which shows the expression below in simplified form? (2.2 × 1012) + (1.7 × 109)
AleksAgata [21]
<span>(2.2 × 1012) + (1.7 × 109) = 2411.7</span>
7 0
3 years ago
Read 2 more answers
If x and y are complementary angles, then y is a right angle.<br><br> right?
Nikitich [7]
Always because the sum of x and y is 180 degrees. If x and y are right angles, then x and y are supplementary angles. Never because the sum of x and y has to be 90 degrees. If x and y are complementary angles, then y is a right angle.
4 0
3 years ago
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