A postcard collector has 1,230 postcards if she display them on pages that hold 6 cards each how many pages does she need
2 answers:
Answer:
205 pages.
Step-by-step explanation:
We have been given that a postcard collector has 1,230 postcards. She display them on pages that hold 6 cards each.
To find the number of pages required to display 1,230 postcards, we will divide 1,230 by 6.
Therefore, the collector needs 205 pages to display 1,230 postcards.
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Answer:
C and E
Step-by-step explanation:
To solve this problem, let's plug in each coordinates into the equation.
A:
- A. cannot be the answer, as 50 does not equal -7.
B:
- B. cannot be the answer, as 11 does not equal -7.
C:
- C. can be the answer, as -7 does equal -7.
D:
- D. cannot be the answer, as -31 does not equal -7.
E:
- E. can be the answer, as -7 does equal -7.
I assume you meant "surface area" :)
Looking at the net, it looks like if you folded it back together it would form to become a triangular prism.
To calculate the surface area of a triangular prism, you would use the formula: A = bh + 2ls + lb, where b is the base of the triangular faces, h is the height of the prism, l is the length of the prism, and s is the side length of the prism.
I attached a picture to help you see what these labels are.
Looking at the diagram you've provided, we can assume that b = 7 cm, h = 4 cm, l = 8 cm, and s = 5 cm. Substitute these into the formula.
A = bh + 2ls + lb ==> A = (7)(4) + 2(8)(5) + (8)(7)
Multiply from left to right.
28 + 80 + 56
Add.
164
The surface area of this triangular prism is A) 164 cm^2.
