The table above shows cell phone sales by color. What percent of the cell phones sold were blue?
1 answer:
Answer:
20percent
Step-by-step explanation:
First we will find the value of k.
Given
White + Black + Blue + Red = Total
8k+30+(30-2k)+k+5 = 100
8k+30+30-2k+k+5=100
7k+65=100
7k+65-65=100-65
7k=35
k = 35/7 = 5
Now given number of blue cell phone sold is 30-2k = 30 - 2(5) = 30 - 10 = 20,
Percentage of Blue cell phones = percent
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