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nlexa [21]
3 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]3 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]3 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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If both the treatment and control groups improve (on average) together, then that means the fake pill is just as good as the real thing. Consequently, it means the real pill isn't effective at all. If on the other hand the experimental group does better overall compared to the control group, then we can see that the real pill is doing what it's intended to do. Of course, there are a lot of complicated factors involved, as there is with anything dealing with medicine. I haven't mentioned anything about side effects or things of that nature. In this simplified viewpoint of the world, we're only considering the one factor of whether or not the drug clears up the psoriasis on the skin.

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6 0
3 years ago
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masha68 [24]

Answer:

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Step-by-step explanation:

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3 years ago
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borishaifa [10]

Answer:

  cos(45°) = (√2)/2

Step-by-step explanation:

The cosine of 45° is the x-coordinate of the point on the unit circle where the line y=x intersects it. That is, it is the positive solution to the equation ...

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  x = (√2)/2 . . . . . simplify

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2 years ago
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Aleksandr [31]
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3 years ago
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