(02.05)
2 answers:
Answer:
John ate 20% of the cookies
Explanation:
Given:
total cookies John bought= 15 cookies,
Number of cookies john ate = 3 cookies
To Find:
Percentage of cookies John ate. =?
Solution:
We know that the formula of finding the percentage of any thing which is given as
So according to question, we have given value = 3
And Total value = 15
Now we will put these values in the formula of percentage to find out the % of cookies that he ate.
Hence , he ate 20% of cookies
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We are told that circle C has center (-4, 6) and a radius of 2.
We are told that circle D has center (6, -2) and a radius of 4.
If we move circle C's center ten units to the right and eight units down, the new center would be at (-4 + 10), (6 - 8) = (6, -2). So step 1 in the informal proof checks out - the centers are the same (which is the definition of concentric) and the shifts are right.
Let's look at our circles. Circle C has a radius of 2 and is inside circle D, whose radius is 4. Between Circle C and Circle D, the radii have a 1:2 ratio, as seen below:
If we dilate circle C by a factor of 2, it means we are expanding it and doubling it. Our circle has that 1:2 ratio, and doubling both sides gives us 2:4. The second step checks out.
Translated objects (or those that you shift) can be congruent, and dilated objects are used with similarity (where you stretch and squeeze). The third step checks out.
Thus, the argument is correct and the last choice is best.