Where's the system? I can't answer your question without it.
Answer: 180
Step-by-step explanation:
"Use a proportion to solve the problem."
"The number of red marbles represents a part of the unknown whole."
The answer is the second one! He followed the customs himself :)
Answer:
58 in^2
Step-by-step explanation:
The area of one face of the 3" cube is (3 in)^2 = 9 in^2. Then the 6 faces of that will have an area of ...
6·9 in^2 = 54 in^2
The area of the top of the paperweight is unaffected by the area of the added cube: the area the smaller cube covers is exactly the same as its exposed top area. So, the net effect of the added 1" cube is to increase the total area by that cube's lateral area: 4 faces at 1 in^2 for each face, a total of 4 in^2.
Then the total surface area of the paperweight is ...
54 in^2 + 4 in^2 = 58 in^2
1 yard= 36 inches
Multiply total number of yards by 36 inches per yard
= 8 yards * 36 inches/yard
= 288 inches total
ANSWER: Yes, he has 200 inches of ribbon with 88 inches to spare.
Hope this helps! :)
