Step-by-step explanation:
Plan A: A = 20G
Plan B: B = 15G + 40
To see when they will be equal set the equations equal to each other
20G = 15G + 40
5G = 40
G = 8
At 8 GB they will cost the same amount.
20(8) = $160
15(8)+40 = $160
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Answer:
60% of the wall is painted.
Step-by-step explanation:
From the picture attached,
There are total 40 squares. Out of 40 squares 16 squares are clear (not painted).
Hence painted squares on the wall = 40 - 16
= 24
Formula to calculate the percentage of painted squares is
= =
= 60%
Therefore, 60% of the wall is painted.
Answer: There are 9 different types of note cards that the store sells.
We can use the Fundamental Counting Principle to determine the total number of options.
There are two different events in this problem. First, there are 3 kinds of cards. Second, there are 3 sizes for each kind.
Simply, multiply the 3 by the other 3 and you have 9 different options.
Just think, each card would have a small, medium and larger option. So there are 3 groups of 3 or 9 total options.
Answer:
10^4 ---------------- 10,000
10^-4* 10^2 ------- 1/10^2 = 0.01
10^-4 ---------------- 1/10^4 = 0.0001
10^-4/10^2 -------- 1/10^6 = 0.000001