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25+10 (12-x)=5 (2x-7)
25+10.12-10x=5.2x-5.7
25+120-10x=10x-35
145-10x=10x-35
145+35=10x+10x
180=20x
x=9
Answer:
About 13% of the freshman class are left-handed
Step-by-step explanation:
To find the percentage of a whole you need to divide the part by the whole number (85/645 = 0.1316), then you round to the nearest tenth (0.13) and change it into a percentage by moving the decimal point 2 numbers to the right. (13%)
10(x2) = 70(x)
10x2 - 70x
10x = 70
<span>
x = 7 </span>
Answer:
There is approximately 0.83*100 or 8.3% chance of rolling an even number (2 or 4 or 6) followed by a four with a six sided die. A single 6-sided die is rolled. What is the probability of rolling a number greater than 3 or an even number?
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