Problem #3: Jamie is decorating 45 cookies for her pirthday party. She decorates 1/3 of the cookies with pink sprinkles. Then sh
1 answer:
Since she decorating 45 cookies
Since she decorates 1/3 of them with pink sprinkles
Let us find 1/3 of 45
Then the remaining = 45 - 15
The remaining cookies = 30
Since she decorates 2/5 of the remaining with heart sprinkles
Let us find 2/5 of 30
Then the rest = 30 - 12
The rest = 18
She decorates 18 cookies with blue sprinkles
You might be interested in
9514 1404 393
Answer:
7. d. l = 6.48 cm, w = 6.48 cm
8. d. square
Step-by-step explanation:
For a given area, the perimeter can always be shortened by reducing the length of the long side and increasing the length of the short side. When you get to the point where you can't do that, then you have the minimum perimeter. You will reach that point when the sides are the same length: the rectangle is a square.
__
7. In light of the above, the best dimensions are √42 ≈ 6.48 cm for length and width.
__
8. In light of the above, the shape is a square.
_____
The attached graph shows the length of one side (x) and the associated perimeter. The other side is 42/x, which will also be 6.48.
