Answer:
64
Step-by-step explanation:
It will take 80 minutes to fill the pool 20x4=80
Answer:
C. In step 2, Cindy should have multiplied both sides of the equation by 2.
Step-by-step explanation:
I'll go through the equation correctly, and then point out what would have happened.
3 = x/2 - 5
Add 5 to both sides. -5 and 5 cancel out.
8 = x/2
What Cindy should have done here is multiply by 2, not divide by 2. It is important to remember that you do the INVERSE operation to cancel out a number.
What would have happened here is that we have an extra step (though either way we still end up with x being 16.)
Correct Step 2:
Multiply both sides by 2. x/2 and 2x cancel out.
x = 16
Incorrect Step 2:
8/2 = (x/2)/2
4 = x/4
Multiply both sides by 4 (this would be the extra step!).
16 = x
Pythagorean Theorem= a^2+b^2=c^2
By looking at the shape, it seems like an isosceles triangle. Meaning the two legs of the triangle must be congruent.
Therefore, a^2+b^2=6^2
a^2+b^2=36
A number plus itself that equals 36 is 18
Thus, 18+18=36
Now all we have to do is square root the the equation to get the final answer(s)
<span>√18+18=36
</span>4.24^2+4.24^2=6^2 would be the final equation making 4.24 your final answer.
Hope this helped! :)