(40+x)/2=60
40 +x = 120
x = 80
check :
40+80 = 120
120/2 = 60
so his second round needs to be 80 mph
Answer:
Stefan spent 108.9$ and made 12.1$
Step-by-step explanation:
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take 10% of 121 and subtract it from 121 and you get the price he paid and made
Answer:
25
Step-by-step explanation:
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Answer:
55.5549451099
Step-by-step explanation:
You can use a calculator or do it by hand