a straight horizontal line is 180 degrees
box in the middle means that angle is 90 degrees
(s+1) + 90 + (2s-1) = 180
3s + 90 = 180
s = 30
If Andrea has 2 cakes, and her friends are eating two thirds of one of her cakes, that is going to leave her with 1 and 1/3 cakes.
Answer:
12, 20
Step-by-step explanation:
3/8 of 32 is 12. She ate 3/8, so she ate 12 apples. The question wants to know how many are left over, so you subtract 12 from 32 and get 20.
Answer:
15 grams
Step-by-step explanation:
There is a 50 gram chocolate bar that contains 30% cocoa. So we are basically finding 30% of 50. We break 30 into 3*10 and 50 into 5*10. 5*3 = 15.
Therefore, there are 15 grams of cocoa in the chocolate bar.
I hope this helps.
