Answer:
63 people
Step-by-step explanation:
first meeting 21 people
second meeting 3 time as many people as first meeting
so 21 ×3=63
i just try it..
This is the Correct answer 276.18448cm3
Answer:
x = ?
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
is not a perfect square. This means that you can rule out answers B and D, because it won't be 'exactly' anything.
Let's think about the other answer choices. C says that the answer of \sqrt{50} will be between 24 and 25. This is easily checkable by doing 
, which equals 576. This easily eliminates option C.
Now, if the other answer choices weren't so obviously incorrect, let's see how you would solve this. What's the closest perfect square root under 50?
, which equals 7.
What's the closest perfect square root above 50?
, which equals 8.
This puts between 7 and 8.
Answer:
24 = 77 - c
Step-by-step explanation:
Since both started off with an initial amount of money and then made a purchase to end up with the same amount of money this can be represented as the following where x is the amount of money left over and c is the cost of the chemistry set.
60 - 36 = x
77 - c = x
Since both are equal to x we can simply make both equations equal to one another.
60 - 36 = 77 - c ... simplify it by subtracting 60 - 36
24 = 77 - c
We can now solve this equation
24 = 77 - c ... subtract 77 from both sides
-53 = -c ... the negatives cancel out
53 = c
