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nlexa [21]
2 years ago
12

Add 5 to me. Then divide by 7. If you add 12 and then subtract 7 you get 10. What number am I

Mathematics
2 answers:
Alinara [238K]2 years ago
8 0

Answer:

x = 30/7

Step-by-step explanation:

Unknown number = x

Write an equation

x + 5 ÷ 7 + 12 - 7 = 10

Simplify

x + 5/7 + 12 - 7 = 10

x + 5/7 + 5 = 10

x + 5/7 = 5

x = 30/7

Hope this helps :)

algol [13]2 years ago
4 0

Answer:

30

Step-by-step explanation:

work in reverse:

10+7=17

17-12=5

5×7=35

35-5=30

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A triangle can only have at most one right angle.

Here's a proof that shows why this is so:

We know that the sum of all interior angles of a triangle must add up to 180.
Let's say the interior angles are A, B, and C

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Let's show that having two right angles is impossible

Let A = B = 90

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180 + C = 180

Subtract 180 from both sides

C = 0

We cannot have an angle with 0 degrees in a triangle. Thus, it is impossible to have 2 right angles in a triangle.

Let's try to show that it's impossible to have 3 right angles

Let A = B = C = 90

90 + 90 + 90 = 180 ?

270 ≠ 180

Thus it's impossible to have 3 right angles as well.

Let's show that is possible to have 1 right angle

Let A = 90

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Subtract both sides by 90

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There are values of B and C that will make this true. Thus, a triangle can have at most one right angle.

Have an awesome day! :)
3 0
3 years ago
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Mariulka [41]

Answer:

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4 0
2 years ago
How would I categorize numbers? For example, what category would √23 fit into? Thankssss
alexandr1967 [171]

Answer:

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Step-by-step explanation:

Numbers are categorized various ways. Some categories include ...

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4 0
3 years ago
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Neporo4naja [7]

Answer:

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Step-by-step explanation:

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2 years ago
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Alekssandra [29.7K]

Answer:

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Step-by-step explanation:

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